11601233631 has 24 divisors (see below), whose sum is σ = 18668657280. Its totient is φ = 6893038656.

The previous prime is 11601233591. The next prime is 11601233639. The reversal of 11601233631 is 13633210611.

11601233631 is a `hidden beast` number, since 1 + 1 + 6 + 0 + 1 + 23 + 3 + 631 = 666.

It is not a de Polignac number, because 11601233631 - 2¹⁰ = 11601232607 is a prime.

It is a super-2 number, since 2×11601233631² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11601233595 and 11601233604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11601233639) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1706191 + ... + 1712976.

It is an arithmetic number, because the mean of its divisors is an integer number (777860720).

Almost surely, 2^11601233631 is an apocalyptic number.

11601233631 is a deficient number, since it is larger than the sum of its proper divisors (7067423649).

11601233631 is a wasteful number, since it uses less digits than its factorization.

11601233631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3419215 (or 3419212 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The spelling of 11601233631 in words is "eleven billion, six hundred one million, two hundred thirty-three thousand, six hundred thirty-one".