30331042400 has 36 divisors (see below), whose sum is σ = 74045659212. Its totient is φ = 12132416640.

The previous prime is 30331042393. The next prime is 30331042447. The reversal of 30331042400 is 424013303.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18956102 + ... + 18957701.

It is an arithmetic number, because the mean of its divisors is an integer number (2056823867).

Almost surely, 2^30331042400 is an apocalyptic number.

It is an amenable number.

30331042400 is an abundant number, since it is smaller than the sum of its proper divisors (43714616812).

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

30331042400 is a wasteful number, since it uses less digits than its factorization.

30331042400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37913823 (or 37913810 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 30331042400 its reverse (424013303), we get a palindrome (30755055703).

The spelling of 30331042400 in words is "thirty billion, three hundred thirty-one million, forty-two thousand, four hundred".