10311332231 has 4 divisors (see below), whose sum is σ = 10311945864. Its totient is φ = 10310718600.

The previous prime is 10311332219. The next prime is 10311332233. The reversal of 10311332231 is 13223311301.

10311332231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10311332231 is a prime.

It is a super-2 number, since 2×10311332231² (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 (10311332233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280880 + ... + 315461.

It is an arithmetic number, because the mean of its divisors is an integer number (2577986466).

Almost surely, 2^10311332231 is an apocalyptic number.

10311332231 is a deficient number, since it is larger than the sum of its proper divisors (613633).

10311332231 is an equidigital number, since it uses as much as digits as its factorization.

10311332231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613632.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 10311332231 its reverse (13223311301), we get a palindrome (23534643532).

The spelling of 10311332231 in words is "ten billion, three hundred eleven million, three hundred thirty-two thousand, two hundred thirty-one".