10931231913 has 16 divisors (see below), whose sum is σ = 16674195840. Its totient is φ = 6240013056.

The previous prime is 10931231911. The next prime is 10931231963. The reversal of 10931231913 is 31913213901.

10931231913 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 10931231913 - 2¹ = 10931231911 is a prime.

It is a super-2 number, since 2×10931231913² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10931231911) 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 15 ways as a sum of consecutive naturals, for example, 245878 + ... + 286911.

It is an arithmetic number, because the mean of its divisors is an integer number (1042137240).

Almost surely, 2^10931231913 is an apocalyptic number.

It is an amenable number.

10931231913 is a deficient number, since it is larger than the sum of its proper divisors (5742963927).

10931231913 is an equidigital number, since it uses as much as digits as its factorization.

10931231913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533776.

The product of its (nonzero) digits is 4374, while the sum is 33.

The spelling of 10931231913 in words is "ten billion, nine hundred thirty-one million, two hundred thirty-one thousand, nine hundred thirteen".