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23212110031 = 1119910603979
BaseRepresentation
bin10101100111100011…
…001011000011001111
32012220200200100211221
4111213203023003033
5340014300010111
614355152024211
71451134452115
oct254743130317
965820610757
1023212110031
1199316a3910
1245b9832067
13225bcc6566
1411a2b43ab5
1590cc5c371
hex5678cb0cf

23212110031 has 8 divisors (see below), whose sum is σ = 25449552000. Its totient is φ = 20995876440.

The previous prime is 23212110013. The next prime is 23212110041. The reversal of 23212110031 is 13001121232.

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

It is not a de Polignac number, because 23212110031 - 27 = 23212109903 is a prime.

It is a super-2 number, since 2×232121100312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23212109987 and 23212110014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23212110011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5299801 + ... + 5304178.

It is an arithmetic number, because the mean of its divisors is an integer number (3181194000).

Almost surely, 223212110031 is an apocalyptic number.

23212110031 is a deficient number, since it is larger than the sum of its proper divisors (2237441969).

23212110031 is a wasteful number, since it uses less digits than its factorization.

23212110031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10604189.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 23212110031 its reverse (13001121232), we get a palindrome (36213231263).

The spelling of 23212110031 in words is "twenty-three billion, two hundred twelve million, one hundred ten thousand, thirty-one".

Divisors: 1 11 199 2189 10603979 116643769 2110191821 23212110031