31422400120 has 16 divisors (see below), whose sum is σ = 70700400360. Its totient is φ = 12568960032.

The previous prime is 31422400091. The next prime is 31422400157. The reversal of 31422400120 is 2100422413.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 392779962 + ... + 392780041.

Almost surely, 2^31422400120 is an apocalyptic number.

It is an amenable number.

31422400120 is an abundant number, since it is smaller than the sum of its proper divisors (39278000240).

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

31422400120 is a wasteful number, since it uses less digits than its factorization.

31422400120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785560014 (or 785560010 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 31422400120 its reverse (2100422413), we get a palindrome (33522822533).

The spelling of 31422400120 in words is "thirty-one billion, four hundred twenty-two million, four hundred thousand, one hundred twenty".