31233310004020 has 12 divisors (see below), whose sum is σ = 65589951008484. Its totient is φ = 12493324001600.

The previous prime is 31233310004011. The next prime is 31233310004063. The reversal of 31233310004020 is 2040001333213.

It can be written as a sum of positive squares in 2 ways, for example, as 24317640789264 + 6915669214756 = 4931292^2 + 2629766^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31233310003982 and 31233310004000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 780832750081 + ... + 780832750120.

It is an arithmetic number, because the mean of its divisors is an integer number (5465829250707).

Almost surely, 2^{31233310004020} is an apocalyptic number.

It is an amenable number.

31233310004020 is an abundant number, since it is smaller than the sum of its proper divisors (34356641004464).

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

31233310004020 is a wasteful number, since it uses less digits than its factorization.

31233310004020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561665500210 (or 1561665500208 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 31233310004020 its reverse (2040001333213), we get a palindrome (33273311337233).

The spelling of 31233310004020 in words is "thirty-one trillion, two hundred thirty-three billion, three hundred ten million, four thousand, twenty".