31240401220104 has 32 divisors (see below), whose sum is σ = 78101875540320. Its totient is φ = 10413350741376.

The previous prime is 31240401220099. The next prime is 31240401220141. The reversal of 31240401220104 is 40102210404213.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 5063962 + ... + 9387465.

It is an arithmetic number, because the mean of its divisors is an integer number (2440683610635).

Almost surely, 2^{31240401220104} is an apocalyptic number.

It is an amenable number.

31240401220104 is an abundant number, since it is smaller than the sum of its proper divisors (46861474320216).

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

31240401220104 is a wasteful number, since it uses less digits than its factorization.

31240401220104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14541509 (or 14541505 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 31240401220104 its reverse (40102210404213), we get a palindrome (71342611624317).

The spelling of 31240401220104 in words is "thirty-one trillion, two hundred forty billion, four hundred one million, two hundred twenty thousand, one hundred four".