20302323231 has 8 divisors (see below), whose sum is σ = 27513531184. Its totient is φ = 13312998720.

The previous prime is 20302323229. The next prime is 20302323263. The reversal of 20302323231 is 13232320302.

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

It is not a de Polignac number, because 20302323231 - 2¹ = 20302323229 is a prime.

It is a super-2 number, since 2×20302323231² (a number of 21 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 = 20302323198 and 20302323207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302323271) 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, 55470646 + ... + 55471011.

It is an arithmetic number, because the mean of its divisors is an integer number (3439191398).

Almost surely, 2^20302323231 is an apocalyptic number.

20302323231 is a deficient number, since it is larger than the sum of its proper divisors (7211207953).

20302323231 is a wasteful number, since it uses less digits than its factorization.

20302323231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110941721.

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

Adding to 20302323231 its reverse (13232320302), we get a palindrome (33534643533).

The spelling of 20302323231 in words is "twenty billion, three hundred two million, three hundred twenty-three thousand, two hundred thirty-one".