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23221113002031 = 371105767285811
BaseRepresentation
bin1010100011110100101100…
…01100010001100000101111
310001012220202021212002121110
411101322112030101200233
511020423314412031111
6121215344304403103
74614445553544540
oct521722614214057
9101186667762543
1023221113002031
117443022a0991a
1227304a7916493
13cc59842914c9
145a3c9d2824c7
152a407b36d5a6
hex151e9631182f

23221113002031 has 8 divisors (see below), whose sum is σ = 35384553145984. Its totient is φ = 13269207429720.

The previous prime is 23221113002029. The next prime is 23221113002057. The reversal of 23221113002031 is 13020031112232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23221113002031 - 21 = 23221113002029 is a prime.

It is a super-2 number, since 2×232211130020312 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1105767285811 = 23221113002031 / (2 + 3 + 2 + 2 + 1 + 1 + 1 + 3 + 0 + 0 + 2 + 0 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 23221113001989 and 23221113002007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23221113002231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552883642885 + ... + 552883642926.

It is an arithmetic number, because the mean of its divisors is an integer number (4423069143248).

Almost surely, 223221113002031 is an apocalyptic number.

23221113002031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23221113002031 is a deficient number, since it is larger than the sum of its proper divisors (12163440143953).

23221113002031 is a wasteful number, since it uses less digits than its factorization.

23221113002031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105767285821.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 23221113002031 its reverse (13020031112232), we get a palindrome (36241144114263).

The spelling of 23221113002031 in words is "twenty-three trillion, two hundred twenty-one billion, one hundred thirteen million, two thousand, thirty-one".

Divisors: 1 3 7 21 1105767285811 3317301857433 7740371000677 23221113002031