31144303200 has 72 divisors (see below), whose sum is σ = 101374714728. Its totient is φ = 8305146880.

The previous prime is 31144303193. The next prime is 31144303213. The reversal of 31144303200 is 230344113.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6485997 + ... + 6490796.

It is an arithmetic number, because the mean of its divisors is an integer number (1407982149).

Almost surely, 2^31144303200 is an apocalyptic number.

31144303200 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31144303200 is an abundant number, since it is smaller than the sum of its proper divisors (70230411528).

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

31144303200 is a wasteful number, since it uses less digits than its factorization.

31144303200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12976816 (or 12976803 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 31144303200 its reverse (230344113), we get a palindrome (31374647313).

The spelling of 31144303200 in words is "thirty-one billion, one hundred forty-four million, three hundred three thousand, two hundred".