202130031124 has 18 divisors (see below), whose sum is σ = 411478992330. Its totient is φ = 86627156112.

The previous prime is 202130031121. The next prime is 202130031133. The reversal of 202130031124 is 421130031202.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 202023280900 + 106750224 = 449470^2 + 10332^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202130031121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 515637639 + ... + 515638030.

Almost surely, 2^202130031124 is an apocalyptic number.

It is an amenable number.

202130031124 is an abundant number, since it is smaller than the sum of its proper divisors (209348961206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202130031124 is a wasteful number, since it uses less digits than its factorization.

202130031124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031275687 (or 1031275678 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 202130031124 its reverse (421130031202), we get a palindrome (623260062326).

The spelling of 202130031124 in words is "two hundred two billion, one hundred thirty million, thirty-one thousand, one hundred twenty-four".