20231302131 has 12 divisors (see below), whose sum is σ = 29272279608. Its totient is φ = 13464786624.

The previous prime is 20231302079. The next prime is 20231302141. The reversal of 20231302131 is 13120313202.

20231302131 is a `hidden beast` number, since 2 + 0 + 231 + 302 + 131 = 666.

It is not a de Polignac number, because 20231302131 - 2⁹ = 20231301619 is a prime.

It is a super-2 number, since 2×20231302131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20231302141) 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, 1890045 + ... + 1900718.

It is an arithmetic number, because the mean of its divisors is an integer number (2439356634).

Almost surely, 2^20231302131 is an apocalyptic number.

20231302131 is a deficient number, since it is larger than the sum of its proper divisors (9040977477).

20231302131 is a wasteful number, since it uses less digits than its factorization.

20231302131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3791362 (or 3791359 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20231302131 its reverse (13120313202), we get a palindrome (33351615333).

The spelling of 20231302131 in words is "twenty billion, two hundred thirty-one million, three hundred two thousand, one hundred thirty-one".