913931506011 has 4 divisors (see below), whose sum is σ = 1218575341352. Its totient is φ = 609287670672.

The previous prime is 913931505979. The next prime is 913931506013. The reversal of 913931506011 is 110605139319.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110605139319 = 3 ⋅36868379773.

It is not a de Polignac number, because 913931506011 - 2⁵ = 913931505979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (913931506013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152321917666 + ... + 152321917671.

It is an arithmetic number, because the mean of its divisors is an integer number (304643835338).

Almost surely, 2^913931506011 is an apocalyptic number.

913931506011 is a deficient number, since it is larger than the sum of its proper divisors (304643835341).

913931506011 is a wasteful number, since it uses less digits than its factorization.

913931506011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304643835340.

The product of its (nonzero) digits is 21870, while the sum is 39.

The spelling of 913931506011 in words is "nine hundred thirteen billion, nine hundred thirty-one million, five hundred six thousand, eleven".