20242133131 has 4 divisors (see below), whose sum is σ = 22082327064. Its totient is φ = 18401939200.

The previous prime is 20242133129. The next prime is 20242133137. The reversal of 20242133131 is 13133124202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20242133131 - 2¹ = 20242133129 is a prime.

It is a super-2 number, since 2×20242133131² (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 (20242133137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 920096950 + ... + 920096971.

It is an arithmetic number, because the mean of its divisors is an integer number (5520581766).

Almost surely, 2^20242133131 is an apocalyptic number.

20242133131 is a deficient number, since it is larger than the sum of its proper divisors (1840193933).

20242133131 is a wasteful number, since it uses less digits than its factorization.

20242133131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840193932.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20242133131 its reverse (13133124202), we get a palindrome (33375257333).

The spelling of 20242133131 in words is "twenty billion, two hundred forty-two million, one hundred thirty-three thousand, one hundred thirty-one".