20323303131 has 8 divisors (see below), whose sum is σ = 27830108944. Its totient is φ = 13182683040.

The previous prime is 20323303111. The next prime is 20323303139. The reversal of 20323303131 is 13130332302.

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

It is not a de Polignac number, because 20323303131 - 2⁶ = 20323303067 is a prime.

It is a super-2 number, since 2×20323303131² (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 = 20323303098 and 20323303107.

It is not an unprimeable number, because it can be changed into a prime (20323303139) 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, 91546300 + ... + 91546521.

It is an arithmetic number, because the mean of its divisors is an integer number (3478763618).

Almost surely, 2^20323303131 is an apocalyptic number.

20323303131 is a deficient number, since it is larger than the sum of its proper divisors (7506805813).

20323303131 is a wasteful number, since it uses less digits than its factorization.

20323303131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183092861.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 20323303131 its reverse (13130332302), we get a palindrome (33453635433).

The spelling of 20323303131 in words is "twenty billion, three hundred twenty-three million, three hundred three thousand, one hundred thirty-one".