31132103313 has 16 divisors (see below), whose sum is σ = 42553369152. Its totient is φ = 20233536000.

The previous prime is 31132103311. The next prime is 31132103333. The reversal of 31132103313 is 31330123113.

It is not a de Polignac number, because 31132103313 - 2¹ = 31132103311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31132103313.

It is not an unprimeable number, because it can be changed into a prime (31132103311) 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, 74418 + ... + 260388.

It is an arithmetic number, because the mean of its divisors is an integer number (2659585572).

Almost surely, 2^31132103313 is an apocalyptic number.

It is an amenable number.

31132103313 is a deficient number, since it is larger than the sum of its proper divisors (11421265839).

31132103313 is a wasteful number, since it uses less digits than its factorization.

31132103313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187376.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 31132103313 its reverse (31330123113), we get a palindrome (62462226426).

The spelling of 31132103313 in words is "thirty-one billion, one hundred thirty-two million, one hundred three thousand, three hundred thirteen".