121231010023231 has 8 divisors (see below), whose sum is σ = 121409372330064. Its totient is φ = 121052775076800.

The previous prime is 121231010023213. The next prime is 121231010023237. The reversal of 121231010023231 is 132320010132121.

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

It is a cyclic number.

It is not a de Polignac number, because 121231010023231 - 2²³ = 121231001634623 is a prime.

It is a super-2 number, since 2×121231010023231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121231010023237) 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, 29934870 + ... + 33742531.

It is an arithmetic number, because the mean of its divisors is an integer number (15176171541258).

Almost surely, 2^{121231010023231} is an apocalyptic number.

121231010023231 is a deficient number, since it is larger than the sum of its proper divisors (178362306833).

121231010023231 is a wasteful number, since it uses less digits than its factorization.

121231010023231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63680201.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 121231010023231 its reverse (132320010132121), we get a palindrome (253551020155352).

The spelling of 121231010023231 in words is "one hundred twenty-one trillion, two hundred thirty-one billion, ten million, twenty-three thousand, two hundred thirty-one".