231112320121 has 8 divisors (see below), whose sum is σ = 239175950400. Its totient is φ = 223054972560.

The previous prime is 231112320079. The next prime is 231112320161. The reversal of 231112320121 is 121023211132.

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 231112320121 - 2¹⁹ = 231111795833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231112320161) 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, 1495765 + ... + 1643026.

It is an arithmetic number, because the mean of its divisors is an integer number (29896993800).

Almost surely, 2^231112320121 is an apocalyptic number.

It is an amenable number.

231112320121 is a deficient number, since it is larger than the sum of its proper divisors (8063630279).

231112320121 is a wasteful number, since it uses less digits than its factorization.

231112320121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3141359.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 231112320121 its reverse (121023211132), we get a palindrome (352135531253).

The spelling of 231112320121 in words is "two hundred thirty-one billion, one hundred twelve million, three hundred twenty thousand, one hundred twenty-one".