202102110131 has 4 divisors (see below), whose sum is σ = 202273239264. Its totient is φ = 201930981000.

The previous prime is 202102110109. The next prime is 202102110151. The reversal of 202102110131 is 131011201202.

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 202102110131 - 2²² = 202097915827 is a prime.

It is a super-2 number, since 2×202102110131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202102110101) 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 3 ways as a sum of consecutive naturals, for example, 85562795 + ... + 85565156.

It is an arithmetic number, because the mean of its divisors is an integer number (50568309816).

Almost surely, 2^202102110131 is an apocalyptic number.

202102110131 is a deficient number, since it is larger than the sum of its proper divisors (171129133).

202102110131 is a wasteful number, since it uses less digits than its factorization.

202102110131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171129132.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 202102110131 its reverse (131011201202), we get a palindrome (333113311333).

The spelling of 202102110131 in words is "two hundred two billion, one hundred two million, one hundred ten thousand, one hundred thirty-one".