31314422000 has 80 divisors (see below), whose sum is σ = 76014143712. Its totient is φ = 12476825600.

The previous prime is 31314421997. The next prime is 31314422123. The reversal of 31314422000 is 22441313.

It is a tau number, because it is divible by the number of its divisors (80).

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 483539 + ... + 544461.

Almost surely, 2^31314422000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31314422000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38007071856).

31314422000 is an abundant number, since it is smaller than the sum of its proper divisors (44699721712).

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

31314422000 is a wasteful number, since it uses less digits than its factorization.

31314422000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61203 (or 61187 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 31314422000 its reverse (22441313), we get a palindrome (31336863313).

The spelling of 31314422000 in words is "thirty-one billion, three hundred fourteen million, four hundred twenty-two thousand".