11321651432 has 128 divisors (see below), whose sum is σ = 27951920640. Its totient is φ = 4171530240.

The previous prime is 11321651401. The next prime is 11321651441. The reversal of 11321651432 is 23415612311.

It is a super-2 number, since 2×11321651432² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11321651395 and 11321651404.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1195757 + ... + 1205187.

It is an arithmetic number, because the mean of its divisors is an integer number (218374380).

Almost surely, 2^11321651432 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 11321651432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13975960320).

11321651432 is an abundant number, since it is smaller than the sum of its proper divisors (16630269208).

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

11321651432 is a wasteful number, since it uses less digits than its factorization.

11321651432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9571 (or 9567 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The spelling of 11321651432 in words is "eleven billion, three hundred twenty-one million, six hundred fifty-one thousand, four hundred thirty-two".