31300000100 has 18 divisors (see below), whose sum is σ = 67921000434. Its totient is φ = 12520000000.

The previous prime is 31300000093. The next prime is 31300000111. The reversal of 31300000100 is 100000313.

It can be written as a sum of positive squares in 3 ways, for example, as 1548579904 + 29751420196 = 39352^2 + 172486^2 .

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, 156499901 + ... + 156500100.

It is an arithmetic number, because the mean of its divisors is an integer number (3773388913).

Almost surely, 2^31300000100 is an apocalyptic number.

It is an amenable number.

31300000100 is an abundant number, since it is smaller than the sum of its proper divisors (36621000334).

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

31300000100 is a wasteful number, since it uses less digits than its factorization.

31300000100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313000015 (or 313000008 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 8.

Adding to 31300000100 its reverse (100000313), we get a palindrome (31400000413).

The spelling of 31300000100 in words is "thirty-one billion, three hundred million, one hundred", and thus it is an aban number.