103131031 has 12 divisors (see below), whose sum is σ = 111305800. Its totient is φ = 95290560.

The previous prime is 103130983. The next prime is 103131043. The reversal of 103131031 is 130131301.

It is a happy number.

It is not a de Polignac number, because 103131031 - 2⁹ = 103130519 is a prime.

It is a super-2 number, since 2×103131031² = 21272019110245922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103135031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30325 + ... + 33553.

Almost surely, 2^103131031 is an apocalyptic number.

103131031 is a deficient number, since it is larger than the sum of its proper divisors (8174769).

103131031 is an equidigital number, since it uses as much as digits as its factorization.

103131031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3330 (or 3289 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 103131031 is about 10155.3449473664. The cubic root of 103131031 is about 468.9535053313.

Adding to 103131031 its reverse (130131301), we get a palindrome (233262332).

The spelling of 103131031 in words is "one hundred three million, one hundred thirty-one thousand, thirty-one".