31133100422442 has 32 divisors (see below), whose sum is σ = 62612684132544. Its totient is φ = 10319957452800.

The previous prime is 31133100422429. The next prime is 31133100422491. The reversal of 31133100422442 is 24422400133113.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27608298 + ... + 28713834.

It is an arithmetic number, because the mean of its divisors is an integer number (1956646379142).

Almost surely, 2^{31133100422442} is an apocalyptic number.

31133100422442 is an abundant number, since it is smaller than the sum of its proper divisors (31479583710102).

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

31133100422442 is a wasteful number, since it uses less digits than its factorization.

31133100422442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131654.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 31133100422442 its reverse (24422400133113), we get a palindrome (55555500555555).

The spelling of 31133100422442 in words is "thirty-one trillion, one hundred thirty-three billion, one hundred million, four hundred twenty-two thousand, four hundred forty-two".