11631632321 has 8 divisors (see below), whose sum is σ = 11667102720. Its totient is φ = 11596199472.

The previous prime is 11631632291. The next prime is 11631632323. The reversal of 11631632321 is 12323613611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11631632321 - 2²⁶ = 11564523457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11631632323) 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, 688451 + ... + 705143.

It is an arithmetic number, because the mean of its divisors is an integer number (1458387840).

Almost surely, 2^11631632321 is an apocalyptic number.

It is an amenable number.

11631632321 is a deficient number, since it is larger than the sum of its proper divisors (35470399).

11631632321 is a wasteful number, since it uses less digits than its factorization.

11631632321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18775.

The product of its digits is 3888, while the sum is 29.

The spelling of 11631632321 in words is "eleven billion, six hundred thirty-one million, six hundred thirty-two thousand, three hundred twenty-one".