11312031000 has 64 divisors (see below), whose sum is σ = 35293546080. Its totient is φ = 3016540800.

The previous prime is 11312030897. The next prime is 11312031041. The reversal of 11312031000 is 13021311.

11312031000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11312031000² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

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, 1882339 + ... + 1888338.

Almost surely, 2^11312031000 is an apocalyptic number.

11312031000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11312031000 is an abundant number, since it is smaller than the sum of its proper divisors (23981515080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11312031000 is a wasteful number, since it uses less digits than its factorization.

11312031000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3770701 (or 3770687 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 11312031000 its reverse (13021311), we get a palindrome (11325052311).

The spelling of 11312031000 in words is "eleven billion, three hundred twelve million, thirty-one thousand".