31400112100100 has 36 divisors (see below), whose sum is σ = 68138870684724. Its totient is φ = 12559929185280.

The previous prime is 31400112100099. The next prime is 31400112100139. The reversal of 31400112100100 is 100121100413.

It can be written as a sum of positive squares in 6 ways, for example, as 124659837184 + 31275452262916 = 353072^2 + 5592446^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9912524 + ... + 12690876.

It is an arithmetic number, because the mean of its divisors is an integer number (1892746407909).

Almost surely, 2^{31400112100100} is an apocalyptic number.

It is an amenable number.

31400112100100 is an abundant number, since it is smaller than the sum of its proper divisors (36738758584624).

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

31400112100100 is a wasteful number, since it uses less digits than its factorization.

31400112100100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2891384 (or 2891377 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 31400112100100 its reverse (100121100413), we get a palindrome (31500233200513).

The spelling of 31400112100100 in words is "thirty-one trillion, four hundred billion, one hundred twelve million, one hundred thousand, one hundred".