31431113200122 has 16 divisors (see below), whose sum is σ = 62862906596160. Its totient is φ = 10476924367392.

The previous prime is 31431113200117. The next prime is 31431113200129. The reversal of 31431113200122 is 22100231113413.

It is a junction number, because it is equal to n+sod(n) for n = 31431113200092 and 31431113200101.

It is not an unprimeable number, because it can be changed into a prime (31431113200129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27739798 + ... + 28850625.

It is an arithmetic number, because the mean of its divisors is an integer number (3928931662260).

Almost surely, 2^{31431113200122} is an apocalyptic number.

31431113200122 is an abundant number, since it is smaller than the sum of its proper divisors (31431793396038).

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

31431113200122 is a wasteful number, since it uses less digits than its factorization.

31431113200122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56682997.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 31431113200122 its reverse (22100231113413), we get a palindrome (53531344313535).

The spelling of 31431113200122 in words is "thirty-one trillion, four hundred thirty-one billion, one hundred thirteen million, two hundred thousand, one hundred twenty-two".