31233300241220 has 48 divisors (see below), whose sum is σ = 81774458817408. Its totient is φ = 9735054620160.

The previous prime is 31233300241219. The next prime is 31233300241249. The reversal of 31233300241220 is 2214200333213.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 31233300241220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10140680357 + ... + 10140683436.

It is an arithmetic number, because the mean of its divisors is an integer number (1703634558696).

Almost surely, 2^{31233300241220} is an apocalyptic number.

It is an amenable number.

31233300241220 is an abundant number, since it is smaller than the sum of its proper divisors (50541158576188).

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

31233300241220 is a wasteful number, since it uses less digits than its factorization.

31233300241220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20281363820 (or 20281363818 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 31233300241220 its reverse (2214200333213), we get a palindrome (33447500574433).

The spelling of 31233300241220 in words is "thirty-one trillion, two hundred thirty-three billion, three hundred million, two hundred forty-one thousand, two hundred twenty".