11308686913 has 4 divisors (see below), whose sum is σ = 11309613268. Its totient is φ = 11307760560.

The previous prime is 11308686899. The next prime is 11308686929. The reversal of 11308686913 is 31968680311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31968680311 = 103 ⋅310375537.

It can be written as a sum of positive squares in 2 ways, for example, as 5211107344 + 6097579569 = 72188^2 + 78087^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11308686913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11308683913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 444618 + ... + 469363.

It is an arithmetic number, because the mean of its divisors is an integer number (2827403317).

Almost surely, 2^11308686913 is an apocalyptic number.

It is an amenable number.

11308686913 is a deficient number, since it is larger than the sum of its proper divisors (926355).

11308686913 is an equidigital number, since it uses as much as digits as its factorization.

11308686913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926354.

The product of its (nonzero) digits is 186624, while the sum is 46.

The spelling of 11308686913 in words is "eleven billion, three hundred eight million, six hundred eighty-six thousand, nine hundred thirteen".