11312132340 has 24 divisors (see below), whose sum is σ = 31673970720. Its totient is φ = 3016568608.

The previous prime is 11312132339. The next prime is 11312132369. The reversal of 11312132340 is 4323121311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94267710 + ... + 94267829.

It is an arithmetic number, because the mean of its divisors is an integer number (1319748780).

Almost surely, 2^11312132340 is an apocalyptic number.

11312132340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11312132340 is an abundant number, since it is smaller than the sum of its proper divisors (20361838380).

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

11312132340 is a wasteful number, since it uses less digits than its factorization.

11312132340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188535551 (or 188535549 counting only the distinct ones).

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

Adding to 11312132340 its reverse (4323121311), we get a palindrome (15635253651).

The spelling of 11312132340 in words is "eleven billion, three hundred twelve million, one hundred thirty-two thousand, three hundred forty".