36231245521 has 12 divisors (see below), whose sum is σ = 38251180800. Its totient is φ = 34312970808.

The previous prime is 36231245509. The next prime is 36231245527. The reversal of 36231245521 is 12554213263.

It is not a de Polignac number, because 36231245521 - 2³³ = 27641310929 is a prime.

It is a super-2 number, since 2×36231245521² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36231245527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1197660 + ... + 1227538.

It is an arithmetic number, because the mean of its divisors is an integer number (3187598400).

Almost surely, 2^36231245521 is an apocalyptic number.

It is an amenable number.

36231245521 is a deficient number, since it is larger than the sum of its proper divisors (2019935279).

36231245521 is a wasteful number, since it uses less digits than its factorization.

36231245521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33276 (or 33257 counting only the distinct ones).

The product of its digits is 43200, while the sum is 34.

Adding to 36231245521 its reverse (12554213263), we get a palindrome (48785458784).

The spelling of 36231245521 in words is "thirty-six billion, two hundred thirty-one million, two hundred forty-five thousand, five hundred twenty-one".