10311132231 has 24 divisors (see below), whose sum is σ = 15568076160. Its totient is φ = 6563936016.

The previous prime is 10311132197. The next prime is 10311132233. The reversal of 10311132231 is 13223111301.

10311132231 is a `hidden beast` number, since 1 + 0 + 311 + 1 + 322 + 31 = 666.

10311132231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10311132231 - 2²⁶ = 10244023367 is a prime.

It is a super-2 number, since 2×10311132231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10311132233) 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 23 ways as a sum of consecutive naturals, for example, 79080 + ... + 163938.

It is an arithmetic number, because the mean of its divisors is an integer number (648669840).

Almost surely, 2^10311132231 is an apocalyptic number.

10311132231 is a deficient number, since it is larger than the sum of its proper divisors (5256943929).

10311132231 is a wasteful number, since it uses less digits than its factorization.

10311132231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85475 (or 85472 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 10311132231 its reverse (13223111301), we get a palindrome (23534243532).

The spelling of 10311132231 in words is "ten billion, three hundred eleven million, one hundred thirty-two thousand, two hundred thirty-one".