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23221033023031 = 163391421202829
BaseRepresentation
bin1010100011110100100010…
…11011001011011000110111
310001012220112201100202001021
411101322101123023120313
511020423133423214111
6121215332330242011
74614443562666604
oct521722133133067
9101186481322037
1023221033023031
117442a91852478
122730484b86307
13cc597083a85c
145a3c927c36ab
152a4074320d71
hex151e916cb637

23221033023031 has 4 divisors (see below), whose sum is σ = 23222454242200. Its totient is φ = 23219611803864.

The previous prime is 23221033022981. The next prime is 23221033023073. The reversal of 23221033023031 is 13032033012232.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23221033023031 - 231 = 23218885539383 is a prime.

It is a super-2 number, since 2×232210330230312 (a number of 28 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 = 23221033022987 and 23221033023005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23221033323031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 710585076 + ... + 710617753.

It is an arithmetic number, because the mean of its divisors is an integer number (5805613560550).

Almost surely, 223221033023031 is an apocalyptic number.

23221033023031 is a deficient number, since it is larger than the sum of its proper divisors (1421219169).

23221033023031 is a wasteful number, since it uses less digits than its factorization.

23221033023031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421219168.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 23221033023031 its reverse (13032033012232), we get a palindrome (36253066035263).

The spelling of 23221033023031 in words is "twenty-three trillion, two hundred twenty-one billion, thirty-three million, twenty-three thousand, thirty-one".

Divisors: 1 16339 1421202829 23221033023031