11320232172 has 24 divisors (see below), whose sum is σ = 26516660016. Its totient is φ = 3758727168.

The previous prime is 11320232171. The next prime is 11320232213. The reversal of 11320232172 is 27123202311.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11320232171) 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, 1832233 + ... + 1838400.

It is an arithmetic number, because the mean of its divisors is an integer number (1104860834).

Almost surely, 2^11320232172 is an apocalyptic number.

11320232172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11320232172 is an abundant number, since it is smaller than the sum of its proper divisors (15196427844).

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

11320232172 is a wasteful number, since it uses less digits than its factorization.

11320232172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3670897 (or 3670895 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

Adding to 11320232172 its reverse (27123202311), we get a palindrome (38443434483).

The spelling of 11320232172 in words is "eleven billion, three hundred twenty million, two hundred thirty-two thousand, one hundred seventy-two".