103031251631 has 16 divisors (see below), whose sum is σ = 128668339968. Its totient is φ = 80150472000.

The previous prime is 103031251627. The next prime is 103031251633. The reversal of 103031251631 is 136152130301.

It is a cyclic number.

It is not a de Polignac number, because 103031251631 - 2² = 103031251627 is a prime.

It is a super-2 number, since 2×103031251631² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 103031251631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103031251633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1066925 + ... + 1159478.

It is an arithmetic number, because the mean of its divisors is an integer number (8041771248).

Almost surely, 2^103031251631 is an apocalyptic number.

103031251631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

103031251631 is a deficient number, since it is larger than the sum of its proper divisors (25637088337).

103031251631 is a wasteful number, since it uses less digits than its factorization.

103031251631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2227022.

The product of its (nonzero) digits is 1620, while the sum is 26.

Adding to 103031251631 its reverse (136152130301), we get a palindrome (239183381932).

The spelling of 103031251631 in words is "one hundred three billion, thirty-one million, two hundred fifty-one thousand, six hundred thirty-one".