202023303231 has 4 divisors (see below), whose sum is σ = 269364404312. Its totient is φ = 134682202152.

The previous prime is 202023303137. The next prime is 202023303233. The reversal of 202023303231 is 132303320202.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 202023303231 - 2¹³ = 202023295039 is a prime.

It is a super-2 number, since 2×202023303231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202023303198 and 202023303207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202023303233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33670550536 + ... + 33670550541.

It is an arithmetic number, because the mean of its divisors is an integer number (67341101078).

Almost surely, 2^202023303231 is an apocalyptic number.

202023303231 is a deficient number, since it is larger than the sum of its proper divisors (67341101081).

202023303231 is an equidigital number, since it uses as much as digits as its factorization.

202023303231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67341101080.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 202023303231 its reverse (132303320202), we get a palindrome (334326623433).

The spelling of 202023303231 in words is "two hundred two billion, twenty-three million, three hundred three thousand, two hundred thirty-one".