103131012 has 24 divisors (see below), whose sum is σ = 253304800. Its totient is φ = 32567616.

The previous prime is 103130983. The next prime is 103131043. The reversal of 103131012 is 210131301.

It is a super-2 number, since 2×103131012² = 21272011272288288, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225937 + ... + 226392.

Almost surely, 2^103131012 is an apocalyptic number.

103131012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

103131012 is an abundant number, since it is smaller than the sum of its proper divisors (150173788).

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

103131012 is a wasteful number, since it uses less digits than its factorization.

103131012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452355 (or 452353 counting only the distinct ones).

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

The square root of 103131012 is about 10155.3440118984. The cubic root of 103131012 is about 468.9534765326.

Adding to 103131012 its reverse (210131301), we get a palindrome (313262313).

It can be divided in two parts, 10313 and 1012, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 103131012 in words is "one hundred three million, one hundred thirty-one thousand, twelve".