31113132003 has 24 divisors (see below), whose sum is σ = 45264960000. Its totient is φ = 20593110384.

The previous prime is 31113131999. The next prime is 31113132007. The reversal of 31113132003 is 30023131113.

It is a happy number.

31113132003 is a `hidden beast` number, since 311 + 1 + 31 + 320 + 0 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (31113131999) and next prime (31113132007).

It is not a de Polignac number, because 31113132003 - 2² = 31113131999 is a prime.

It is a super-2 number, since 2×31113132003² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31113132007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 817798 + ... + 854996.

It is an arithmetic number, because the mean of its divisors is an integer number (1886040000).

Almost surely, 2^31113132003 is an apocalyptic number.

31113132003 is a deficient number, since it is larger than the sum of its proper divisors (14151827997).

31113132003 is a wasteful number, since it uses less digits than its factorization.

31113132003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37871 (or 37868 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 31113132003 its reverse (30023131113), we get a palindrome (61136263116).

The spelling of 31113132003 in words is "thirty-one billion, one hundred thirteen million, one hundred thirty-two thousand, three".