202130021023 has 8 divisors (see below), whose sum is σ = 231511224992. Its totient is φ = 172875188736.

The previous prime is 202130020999. The next prime is 202130021053. The reversal of 202130021023 is 320120031202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202130021023 - 2⁹ = 202130020511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202130020988 and 202130021006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202130021053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31589490 + ... + 31595887.

It is an arithmetic number, because the mean of its divisors is an integer number (28938903124).

Almost surely, 2^202130021023 is an apocalyptic number.

202130021023 is a deficient number, since it is larger than the sum of its proper divisors (29381203969).

202130021023 is an equidigital number, since it uses as much as digits as its factorization.

202130021023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63185841.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 202130021023 its reverse (320120031202), we get a palindrome (522250052225).

The spelling of 202130021023 in words is "two hundred two billion, one hundred thirty million, twenty-one thousand, twenty-three".