9113213120031 has 20 divisors (see below), whose sum is σ = 13643354316592. Its totient is φ = 6062181131808.

The previous prime is 9113213120009. The next prime is 9113213120047. The reversal of 9113213120031 is 1300213123119.

It is not a de Polignac number, because 9113213120031 - 2⁷ = 9113213119903 is a prime.

It is a super-2 number, since 2×9113213120031² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9113213119977 and 9113213120004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9113213121031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 123057955 + ... + 123131988.

Almost surely, 2^{9113213120031} is an apocalyptic number.

9113213120031 is a deficient number, since it is larger than the sum of its proper divisors (4530141196561).

9113213120031 is a wasteful number, since it uses less digits than its factorization.

9113213120031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246190412 (or 246190403 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The spelling of 9113213120031 in words is "nine trillion, one hundred thirteen billion, two hundred thirteen million, one hundred twenty thousand, thirty-one".