11312312232 has 32 divisors (see below), whose sum is σ = 30456226080. Its totient is φ = 3480711360.

The previous prime is 11312312197. The next prime is 11312312237. The reversal of 11312312232 is 23221321311.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 11312312199 and 11312312208.

It is not an unprimeable number, because it can be changed into a prime (11312312237) 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, 18128394 + ... + 18129017.

It is an arithmetic number, because the mean of its divisors is an integer number (951757065).

Almost surely, 2^11312312232 is an apocalyptic number.

11312312232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11312312232 is an abundant number, since it is smaller than the sum of its proper divisors (19143913848).

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

11312312232 is a wasteful number, since it uses less digits than its factorization.

11312312232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36257433 (or 36257429 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

Adding to 11312312232 its reverse (23221321311), we get a palindrome (34533633543).

The spelling of 11312312232 in words is "eleven billion, three hundred twelve million, three hundred twelve thousand, two hundred thirty-two".