11311010031 has 16 divisors (see below), whose sum is σ = 15197184000. Its totient is φ = 7482852768.

The previous prime is 11311009979. The next prime is 11311010059. The reversal of 11311010031 is 13001011311.

It is not a de Polignac number, because 11311010031 - 2¹⁵ = 11310977263 is a prime.

It is a super-2 number, since 2×11311010031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11311009989 and 11311010016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11311010731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 474250 + ... + 497528.

It is an arithmetic number, because the mean of its divisors is an integer number (949824000).

Almost surely, 2^11311010031 is an apocalyptic number.

11311010031 is a deficient number, since it is larger than the sum of its proper divisors (3886173969).

11311010031 is a wasteful number, since it uses less digits than its factorization.

11311010031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24518.

The product of its (nonzero) digits is 9, while the sum is 12.

Adding to 11311010031 its reverse (13001011311), we get a palindrome (24312021342).

The spelling of 11311010031 in words is "eleven billion, three hundred eleven million, ten thousand, thirty-one".