11263139620 has 24 divisors (see below), whose sum is σ = 23657369400. Its totient is φ = 4504346112.

The previous prime is 11263139617. The next prime is 11263139627. The reversal of 11263139620 is 2693136211.

It can be written as a sum of positive squares in 4 ways, for example, as 5201582884 + 6061556736 = 72122^2 + 77856^2 .

It is a super-2 number, since 2×11263139620² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11263139627) 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, 49516 + ... + 158044.

It is an arithmetic number, because the mean of its divisors is an integer number (985723725).

Almost surely, 2^11263139620 is an apocalyptic number.

11263139620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11263139620 is an abundant number, since it is smaller than the sum of its proper divisors (12394229780).

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

11263139620 is a wasteful number, since it uses less digits than its factorization.

11263139620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113727 (or 113725 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 34.

It can be divided in two parts, 112631 and 39620, that added together give a palindrome (152251).

The spelling of 11263139620 in words is "eleven billion, two hundred sixty-three million, one hundred thirty-nine thousand, six hundred twenty".