10231321121 has 4 divisors (see below), whose sum is σ = 11692938432. Its totient is φ = 8769703812.

The previous prime is 10231321117. The next prime is 10231321159. The reversal of 10231321121 is 12112313201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12112313201 = 241 ⋅50258561.

It is a cyclic number.

It is not a de Polignac number, because 10231321121 - 2² = 10231321117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10231321121.

It is not an unprimeable number, because it can be changed into a prime (10231321171) 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, 730808645 + ... + 730808658.

It is an arithmetic number, because the mean of its divisors is an integer number (2923234608).

Almost surely, 2^10231321121 is an apocalyptic number.

It is an amenable number.

10231321121 is a deficient number, since it is larger than the sum of its proper divisors (1461617311).

10231321121 is an equidigital number, since it uses as much as digits as its factorization.

10231321121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461617310.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 10231321121 its reverse (12112313201), we get a palindrome (22343634322).

The spelling of 10231321121 in words is "ten billion, two hundred thirty-one million, three hundred twenty-one thousand, one hundred twenty-one".