10321111231 has 4 divisors (see below), whose sum is σ = 10338694632. Its totient is φ = 10303527832.

The previous prime is 10321111159. The next prime is 10321111237. The reversal of 10321111231 is 13211112301.

It is a happy number.

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 10321111231 - 2²⁷ = 10186893503 is a prime.

It is a super-2 number, since 2×10321111231² (a number of 21 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 (10321111237) 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, 8790820 + ... + 8791993.

It is an arithmetic number, because the mean of its divisors is an integer number (2584673658).

Almost surely, 2^10321111231 is an apocalyptic number.

10321111231 is a deficient number, since it is larger than the sum of its proper divisors (17583401).

10321111231 is an equidigital number, since it uses as much as digits as its factorization.

10321111231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17583400.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 10321111231 its reverse (13211112301), we get a palindrome (23532223532).

The spelling of 10321111231 in words is "ten billion, three hundred twenty-one million, one hundred eleven thousand, two hundred thirty-one".