31203400403130 has 16 divisors (see below), whose sum is σ = 74888160967584. Its totient is φ = 8320906774160.

The previous prime is 31203400403099. The next prime is 31203400403141. The reversal of 31203400403130 is 3130400430213.

It is a self number, because there is not a number n which added to its sum of digits gives 31203400403130.

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, 520056673356 + ... + 520056673415.

It is an arithmetic number, because the mean of its divisors is an integer number (4680510060474).

Almost surely, 2^{31203400403130} is an apocalyptic number.

31203400403130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31203400403130 is an abundant number, since it is smaller than the sum of its proper divisors (43684760564454).

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

31203400403130 is a wasteful number, since it uses less digits than its factorization.

31203400403130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040113346781.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 31203400403130 its reverse (3130400430213), we get a palindrome (34333800833343).

The spelling of 31203400403130 in words is "thirty-one trillion, two hundred three billion, four hundred million, four hundred three thousand, one hundred thirty".