202123123131330 has 48 divisors (see below), whose sum is σ = 525522859538040. Its totient is φ = 53899218537984.

The previous prime is 202123123131311. The next prime is 202123123131331. The reversal of 202123123131330 is 33131321321202.

202123123131330 is a `hidden beast` number, since 2 + 0 + 2 + 1 + 2 + 3 + 12 + 313 + 1 + 330 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 140334420916089 + 61788702215241 = 11846283^2 + 7860579^2 .

It is a junction number, because it is equal to n+sod(n) for n = 202123123131294 and 202123123131303.

It is not an unprimeable number, because it can be changed into a prime (202123123131331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11802144 + ... + 23313876.

Almost surely, 2^{202123123131330} is an apocalyptic number.

202123123131330 is an abundant number, since it is smaller than the sum of its proper divisors (323399736406710).

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

202123123131330 is a wasteful number, since it uses less digits than its factorization.

202123123131330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11706835 (or 11706832 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 202123123131330 its reverse (33131321321202), we get a palindrome (235254444452532).

The spelling of 202123123131330 in words is "two hundred two trillion, one hundred twenty-three billion, one hundred twenty-three million, one hundred thirty-one thousand, three hundred thirty".