11238631791420 has 96 divisors (see below), whose sum is σ = 34455587152896. Its totient is φ = 2714463187200.

The previous prime is 11238631791397. The next prime is 11238631791437. The reversal of 11238631791420 is 2419713683211.

It is a self number, because there is not a number n which added to its sum of digits gives 11238631791420.

It is a congruent 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, 31238539 + ... + 31596258.

It is an arithmetic number, because the mean of its divisors is an integer number (358912366176).

Almost surely, 2^{11238631791420} is an apocalyptic number.

11238631791420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11238631791420 is an abundant number, since it is smaller than the sum of its proper divisors (23216955361476).

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

11238631791420 is a wasteful number, since it uses less digits than its factorization.

11238631791420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62835091 (or 62835089 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 11238631791420 in words is "eleven trillion, two hundred thirty-eight billion, six hundred thirty-one million, seven hundred ninety-one thousand, four hundred twenty".