202100243031 has 12 divisors (see below), whose sum is σ = 292650564960. Its totient is φ = 134397499200.

The previous prime is 202100243017. The next prime is 202100243039. The reversal of 202100243031 is 130342001202.

202100243031 is a `hidden beast` number, since 20 + 210 + 0 + 2 + 430 + 3 + 1 = 666.

It is not a de Polignac number, because 202100243031 - 2¹⁰ = 202100242007 is a prime.

It is a super-2 number, since 2×202100243031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202100242995 and 202100243013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202100243039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27995871 + ... + 28003088.

It is an arithmetic number, because the mean of its divisors is an integer number (24387547080).

Almost surely, 2^202100243031 is an apocalyptic number.

202100243031 is a deficient number, since it is larger than the sum of its proper divisors (90550321929).

202100243031 is a wasteful number, since it uses less digits than its factorization.

202100243031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55999366 (or 55999363 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 202100243031 its reverse (130342001202), we get a palindrome (332442244233).

The spelling of 202100243031 in words is "two hundred two billion, one hundred million, two hundred forty-three thousand, thirty-one".