31324012122 has 32 divisors (see below), whose sum is σ = 68086085760. Its totient is φ = 9549731520.

The previous prime is 31324012117. The next prime is 31324012129. The reversal of 31324012122 is 22121042313.

It is not an unprimeable number, because it can be changed into a prime (31324012129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1833654 + ... + 1850657.

It is an arithmetic number, because the mean of its divisors is an integer number (2127690180).

Almost surely, 2^31324012122 is an apocalyptic number.

31324012122 is an abundant number, since it is smaller than the sum of its proper divisors (36762073638).

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

31324012122 is a wasteful number, since it uses less digits than its factorization.

31324012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3684438.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31324012122 its reverse (22121042313), we get a palindrome (53445054435).

The spelling of 31324012122 in words is "thirty-one billion, three hundred twenty-four million, twelve thousand, one hundred twenty-two".