202130031123 has 10 divisors (see below), whose sum is σ = 301947330564. Its totient is φ = 134753354028.

The previous prime is 202130031121. The next prime is 202130031133. The reversal of 202130031123 is 321130031202.

202130031123 is a `hidden beast` number, since 202 + 130 + 0 + 311 + 23 = 666.

202130031123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 202130031123 - 2¹ = 202130031121 is a prime.

It is a super-2 number, since 2×202130031123² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202130031096 and 202130031105.

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

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1247716161 + ... + 1247716322.

Almost surely, 2^202130031123 is an apocalyptic number.

202130031123 is a deficient number, since it is larger than the sum of its proper divisors (99817299441).

202130031123 is an equidigital number, since it uses as much as digits as its factorization.

202130031123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2495432495 (or 2495432486 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 202130031123 its reverse (321130031202), we get a palindrome (523260062325).

The spelling of 202130031123 in words is "two hundred two billion, one hundred thirty million, thirty-one thousand, one hundred twenty-three".