31220004100102 has 16 divisors (see below), whose sum is σ = 47913229667520. Its totient is φ = 15251392217152.

The previous prime is 31220004100093. The next prime is 31220004100141. The reversal of 31220004100102 is 20100140002213.

It is a congruent number.

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, 616142743 + ... + 616193410.

It is an arithmetic number, because the mean of its divisors is an integer number (2994576854220).

Almost surely, 2^{31220004100102} is an apocalyptic number.

31220004100102 is a deficient number, since it is larger than the sum of its proper divisors (16693225567418).

31220004100102 is a wasteful number, since it uses less digits than its factorization.

31220004100102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232336447.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 31220004100102 its reverse (20100140002213), we get a palindrome (51320144102315).

The spelling of 31220004100102 in words is "thirty-one trillion, two hundred twenty billion, four million, one hundred thousand, one hundred two".