11231179788 has 18 divisors (see below), whose sum is σ = 26206942804. Its totient is φ = 3743604224.

The previous prime is 11231179787. The next prime is 11231179793. The reversal of 11231179788 is 88797113211.

It is a super-2 number, since 2×11231179788² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11231179787) 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, 351820 + ... + 382412.

Almost surely, 2^11231179788 is an apocalyptic number.

It is an amenable number.

11231179788 is an abundant number, since it is smaller than the sum of its proper divisors (14975763016).

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

11231179788 is an frugal number, since it uses more digits than its factorization.

11231179788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61193 (or 30598 counting only the distinct ones).

The product of its digits is 169344, while the sum is 48.

Multiplying 11231179788 by its sum of digits (48), we get a square (539096629824 = 734232²).

The spelling of 11231179788 in words is "eleven billion, two hundred thirty-one million, one hundred seventy-nine thousand, seven hundred eighty-eight".