31200200122 has 48 divisors (see below), whose sum is σ = 58655796192. Its totient is φ = 12337284960.

The previous prime is 31200200081. The next prime is 31200200137. The reversal of 31200200122 is 22100200213.

It is a Harshad number since it is a multiple of its sum of digits (13).

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 23 ways as a sum of consecutive naturals, for example, 3780933 + ... + 3789175.

It is an arithmetic number, because the mean of its divisors is an integer number (1221995754).

Almost surely, 2^31200200122 is an apocalyptic number.

31200200122 is a deficient number, since it is larger than the sum of its proper divisors (27455596070).

31200200122 is a wasteful number, since it uses less digits than its factorization.

31200200122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11243 (or 11236 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 31200200122 its reverse (22100200213), we get a palindrome (53300400335).

Subtracting from 31200200122 its reverse (22100200213), we obtain a palindrome (9099999909).

The spelling of 31200200122 in words is "thirty-one billion, two hundred million, two hundred thousand, one hundred twenty-two".