103931138031 has 32 divisors (see below), whose sum is σ = 159581990400. Its totient is φ = 58935582720.

The previous prime is 103931138027. The next prime is 103931138083. The reversal of 103931138031 is 130831139301.

It is not a de Polignac number, because 103931138031 - 2² = 103931138027 is a prime.

It is a super-2 number, since 2×103931138031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 103931137983 and 103931138001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103931136031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7842571 + ... + 7855811.

It is an arithmetic number, because the mean of its divisors is an integer number (4986937200).

Almost surely, 2^103931138031 is an apocalyptic number.

103931138031 is a deficient number, since it is larger than the sum of its proper divisors (55650852369).

103931138031 is a wasteful number, since it uses less digits than its factorization.

103931138031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16079.

The product of its (nonzero) digits is 5832, while the sum is 33.

The spelling of 103931138031 in words is "one hundred three billion, nine hundred thirty-one million, one hundred thirty-eight thousand, thirty-one".