20231370471136 has 48 divisors (see below), whose sum is σ = 43452718671600. Its totient is φ = 9195812398080.

The previous prime is 20231370471127. The next prime is 20231370471157. The reversal of 20231370471136 is 63117407313202.

It is a happy number.

It is a super-2 number, since 2×20231370471136² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11667370 + ... + 13288726.

It is an arithmetic number, because the mean of its divisors is an integer number (905264972325).

Almost surely, 2^{20231370471136} is an apocalyptic number.

It is an amenable number.

20231370471136 is an abundant number, since it is smaller than the sum of its proper divisors (23221348200464).

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

20231370471136 is a wasteful number, since it uses less digits than its factorization.

20231370471136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656827 (or 1656819 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 40.

Adding to 20231370471136 its reverse (63117407313202), we get a palindrome (83348777784338).

The spelling of 20231370471136 in words is "twenty trillion, two hundred thirty-one billion, three hundred seventy million, four hundred seventy-one thousand, one hundred thirty-six".