31403142402100 has 72 divisors (see below), whose sum is σ = 78375843069440. Its totient is φ = 10698213352320.

The previous prime is 31403142402059. The next prime is 31403142402139. The reversal of 31403142402100 is 120424130413.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142761540 + ... + 142981339.

Almost surely, 2^{31403142402100} is an apocalyptic number.

It is an amenable number.

31403142402100 is an abundant number, since it is smaller than the sum of its proper divisors (46972700667340).

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

31403142402100 is a wasteful number, since it uses less digits than its factorization.

31403142402100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285743057 (or 285743050 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 31403142402100 its reverse (120424130413), we get a palindrome (31523566532513).

The spelling of 31403142402100 in words is "thirty-one trillion, four hundred three billion, one hundred forty-two million, four hundred two thousand, one hundred".