20310133131 has 16 divisors (see below), whose sum is σ = 30106864000. Its totient is φ = 13532088744.

The previous prime is 20310133099. The next prime is 20310133241. The reversal of 20310133131 is 13133101302.

It is a happy number.

20310133131 is a `hidden beast` number, since 20 + 310 + 1 + 331 + 3 + 1 = 666.

It is not a de Polignac number, because 20310133131 - 2⁵ = 20310133099 is a prime.

It is a super-2 number, since 2×20310133131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20310133031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175501 + ... + 267246.

It is an arithmetic number, because the mean of its divisors is an integer number (1881679000).

Almost surely, 2^20310133131 is an apocalyptic number.

20310133131 is a deficient number, since it is larger than the sum of its proper divisors (9796730869).

20310133131 is a wasteful number, since it uses less digits than its factorization.

20310133131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444455 (or 444449 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 20310133131 its reverse (13133101302), we get a palindrome (33443234433).

The spelling of 20310133131 in words is "twenty billion, three hundred ten million, one hundred thirty-three thousand, one hundred thirty-one".