31316040412338 has 16 divisors (see below), whose sum is σ = 68325906354336. Its totient is φ = 9489709215840.

The previous prime is 31316040412337. The next prime is 31316040412351. The reversal of 31316040412338 is 83321404061313.

It is a junction number, because it is equal to n+sod(n) for n = 31316040412296 and 31316040412305.

It is not an unprimeable number, because it can be changed into a prime (31316040412331) 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, 237242730331 + ... + 237242730462.

It is an arithmetic number, because the mean of its divisors is an integer number (4270369147146).

Almost surely, 2^{31316040412338} is an apocalyptic number.

31316040412338 is an abundant number, since it is smaller than the sum of its proper divisors (37009865941998).

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

31316040412338 is a wasteful number, since it uses less digits than its factorization.

31316040412338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474485460809.

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 31316040412338 in words is "thirty-one trillion, three hundred sixteen billion, forty million, four hundred twelve thousand, three hundred thirty-eight".