202120024131 has 24 divisors (see below), whose sum is σ = 294330077184. Its totient is φ = 133649293680.

The previous prime is 202120024129. The next prime is 202120024153. The reversal of 202120024131 is 131420021202.

It is a happy number.

It is not a de Polignac number, because 202120024131 - 2¹ = 202120024129 is a prime.

It is a super-2 number, since 2×202120024131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (202120024231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4557936 + ... + 4602066.

It is an arithmetic number, because the mean of its divisors is an integer number (12263753216).

Almost surely, 2^202120024131 is an apocalyptic number.

202120024131 is a deficient number, since it is larger than the sum of its proper divisors (92210053053).

202120024131 is a wasteful number, since it uses less digits than its factorization.

202120024131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48271 (or 48268 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 202120024131 its reverse (131420021202), we get a palindrome (333540045333).

The spelling of 202120024131 in words is "two hundred two billion, one hundred twenty million, twenty-four thousand, one hundred thirty-one".