202125235131 has 24 divisors (see below), whose sum is σ = 293145591024. Its totient is φ = 134203269120.

The previous prime is 202125235127. The next prime is 202125235139. The reversal of 202125235131 is 131532521202.

202125235131 is a `hidden beast` number, since 2 + 0 + 2 + 1 + 2 + 523 + 5 + 131 = 666.

It is not a de Polignac number, because 202125235131 - 2² = 202125235127 is a prime.

It is a super-2 number, since 2×202125235131² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202125235095 and 202125235104.

It is not an unprimeable number, because it can be changed into a prime (202125235139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2638651 + ... + 2714171.

It is an arithmetic number, because the mean of its divisors is an integer number (12214399626).

Almost surely, 2^202125235131 is an apocalyptic number.

202125235131 is a deficient number, since it is larger than the sum of its proper divisors (91020355893).

202125235131 is a wasteful number, since it uses less digits than its factorization.

202125235131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76731 (or 76728 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 202125235131 its reverse (131532521202), we get a palindrome (333657756333).

The spelling of 202125235131 in words is "two hundred two billion, one hundred twenty-five million, two hundred thirty-five thousand, one hundred thirty-one".