20135631344132 has 48 divisors (see below), whose sum is σ = 38602641272832. Its totient is φ = 9148748912640.

The previous prime is 20135631344123. The next prime is 20135631344177. The reversal of 20135631344132 is 23144313653102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10117268 + ... + 11942795.

It is an arithmetic number, because the mean of its divisors is an integer number (804221693184).

Almost surely, 2^{20135631344132} is an apocalyptic number.

It is an amenable number.

20135631344132 is a deficient number, since it is larger than the sum of its proper divisors (18467009928700).

20135631344132 is a wasteful number, since it uses less digits than its factorization.

20135631344132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22060548 (or 22060546 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 38.

Adding to 20135631344132 its reverse (23144313653102), we get a palindrome (43279944997234).

The spelling of 20135631344132 in words is "twenty trillion, one hundred thirty-five billion, six hundred thirty-one million, three hundred forty-four thousand, one hundred thirty-two".