31600157103 has 16 divisors (see below), whose sum is σ = 46871688960. Its totient is φ = 21041282808.

The previous prime is 31600157077. The next prime is 31600157111. The reversal of 31600157103 is 30175100613.

31600157103 is a `hidden beast` number, since 3 + 1 + 600 + 1 + 57 + 1 + 0 + 3 = 666.

It is not a de Polignac number, because 31600157103 - 2⁹ = 31600156591 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31600157123) 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, 685275 + ... + 729932.

It is an arithmetic number, because the mean of its divisors is an integer number (2929480560).

Almost surely, 2^31600157103 is an apocalyptic number.

31600157103 is a deficient number, since it is larger than the sum of its proper divisors (15271531857).

31600157103 is a wasteful number, since it uses less digits than its factorization.

31600157103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416043 (or 1416037 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

Adding to 31600157103 its reverse (30175100613), we get a palindrome (61775257716).

The spelling of 31600157103 in words is "thirty-one billion, six hundred million, one hundred fifty-seven thousand, one hundred three".