103031131340 has 48 divisors (see below), whose sum is σ = 220414434240. Its totient is φ = 40444289280.

The previous prime is 103031131321. The next prime is 103031131349. The reversal of 103031131340 is 43131130301.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (103031131349) 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, 439394 + ... + 631766.

It is an arithmetic number, because the mean of its divisors is an integer number (4591967380).

Almost surely, 2^103031131340 is an apocalyptic number.

103031131340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103031131340 is an abundant number, since it is smaller than the sum of its proper divisors (117383302900).

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

103031131340 is a wasteful number, since it uses less digits than its factorization.

103031131340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192882 (or 192880 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 103031131340 its reverse (43131130301), we get a palindrome (146162261641).

The spelling of 103031131340 in words is "one hundred three billion, thirty-one million, one hundred thirty-one thousand, three hundred forty".