20323302131 has 8 divisors (see below), whose sum is σ = 22451520000. Its totient is φ = 18241858440.

The previous prime is 20323302049. The next prime is 20323302157. The reversal of 20323302131 is 13120332302.

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 20323302131 - 2²² = 20319107827 is a prime.

It is a super-2 number, since 2×20323302131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20323302161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11692631 + ... + 11694368.

It is an arithmetic number, because the mean of its divisors is an integer number (2806440000).

Almost surely, 2^20323302131 is an apocalyptic number.

20323302131 is a deficient number, since it is larger than the sum of its proper divisors (2128217869).

20323302131 is a wasteful number, since it uses less digits than its factorization.

20323302131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23387089.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20323302131 its reverse (13120332302), we get a palindrome (33443634433).

The spelling of 20323302131 in words is "twenty billion, three hundred twenty-three million, three hundred two thousand, one hundred thirty-one".