11131379712 has 84 divisors (see below), whose sum is σ = 32155569420. Its totient is φ = 3710435328.

The previous prime is 11131379681. The next prime is 11131379719. The reversal of 11131379712 is 21797313111.

It is a super-2 number, since 2×11131379712² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11131379719) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1762 + ... + 149217.

Almost surely, 2^11131379712 is an apocalyptic number.

11131379712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11131379712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16077784710).

11131379712 is an abundant number, since it is smaller than the sum of its proper divisors (21024189708).

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

11131379712 is an equidigital number, since it uses as much as digits as its factorization.

11131379712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151011 (or 150984 counting only the distinct ones).

The product of its digits is 7938, while the sum is 36.

The spelling of 11131379712 in words is "eleven billion, one hundred thirty-one million, three hundred seventy-nine thousand, seven hundred twelve".