202113031023 has 12 divisors (see below), whose sum is σ = 291954051480. Its totient is φ = 134736017616.

The previous prime is 202113031007. The next prime is 202113031049. The reversal of 202113031023 is 320130311202.

202113031023 is a `hidden beast` number, since 202 + 1 + 130 + 310 + 23 = 666.

It is not a de Polignac number, because 202113031023 - 2⁴ = 202113031007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202113030987 and 202113031005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202113031123) 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, 282013 + ... + 695526.

It is an arithmetic number, because the mean of its divisors is an integer number (24329504290).

Almost surely, 2^202113031023 is an apocalyptic number.

202113031023 is a deficient number, since it is larger than the sum of its proper divisors (89841020457).

202113031023 is a wasteful number, since it uses less digits than its factorization.

202113031023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000518 (or 1000515 counting only the distinct ones).

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

Adding to 202113031023 its reverse (320130311202), we get a palindrome (522243342225).

The spelling of 202113031023 in words is "two hundred two billion, one hundred thirteen million, thirty-one thousand, twenty-three".