31315331404105 has 32 divisors (see below), whose sum is σ = 43328081516544. Its totient is φ = 21282710701056.

The previous prime is 31315331404043. The next prime is 31315331404111. The reversal of 31315331404105 is 50140413351313.

It is not a de Polignac number, because 31315331404105 - 2³³ = 31306741469513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 161951592 + ... + 162144838.

It is an arithmetic number, because the mean of its divisors is an integer number (1354002547392).

Almost surely, 2^{31315331404105} is an apocalyptic number.

31315331404105 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

31315331404105 is a deficient number, since it is larger than the sum of its proper divisors (12012750112439).

31315331404105 is a wasteful number, since it uses less digits than its factorization.

31315331404105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234345.

The product of its (nonzero) digits is 32400, while the sum is 34.

Adding to 31315331404105 its reverse (50140413351313), we get a palindrome (81455744755418).

The spelling of 31315331404105 in words is "thirty-one trillion, three hundred fifteen billion, three hundred thirty-one million, four hundred four thousand, one hundred five".