31224312312204 has 24 divisors (see below), whose sum is σ = 79480067704128. Its totient is φ = 9461912821840.

The previous prime is 31224312312197. The next prime is 31224312312253. The reversal of 31224312312204 is 40221321342213.

It is a happy 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, 118273910142 + ... + 118273910405.

It is an arithmetic number, because the mean of its divisors is an integer number (3311669487672).

Almost surely, 2^{31224312312204} is an apocalyptic number.

It is an amenable number.

31224312312204 is an abundant number, since it is smaller than the sum of its proper divisors (48255755391924).

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

31224312312204 is a wasteful number, since it uses less digits than its factorization.

31224312312204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236547820565 (or 236547820563 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 31224312312204 its reverse (40221321342213), we get a palindrome (71445633654417).

The spelling of 31224312312204 in words is "thirty-one trillion, two hundred twenty-four billion, three hundred twelve million, three hundred twelve thousand, two hundred four".