11312012432 has 80 divisors (see below), whose sum is σ = 26617082112. Its totient is φ = 4546375680.

The previous prime is 11312012431. The next prime is 11312012461. The reversal of 11312012432 is 23421021311.

11312012432 is a modest number, since divided by 12432 gives 11312 as remainder.

It is not an unprimeable number, because it can be changed into a prime (11312012431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 524453 + ... + 545595.

Almost surely, 2^11312012432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11312012432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13308541056).

11312012432 is an abundant number, since it is smaller than the sum of its proper divisors (15305069680).

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

11312012432 is a wasteful number, since it uses less digits than its factorization.

11312012432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21456 (or 21450 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11312012432 its reverse (23421021311), we get a palindrome (34733033743).

The spelling of 11312012432 in words is "eleven billion, three hundred twelve million, twelve thousand, four hundred thirty-two".