20310132310331 has 4 divisors (see below), whose sum is σ = 20519515117752. Its totient is φ = 20100749502912.

The previous prime is 20310132310291. The next prime is 20310132310333. The reversal of 20310132310331 is 13301323101302.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20310132310331 is a prime.

It is a super-2 number, since 2×20310132310331² (a number of 27 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 = 20310132310297 and 20310132310306.

It is not an unprimeable number, because it can be changed into a prime (20310132310333) 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, 104691403565 + ... + 104691403758.

It is an arithmetic number, because the mean of its divisors is an integer number (5129878779438).

Almost surely, 2^{20310132310331} is an apocalyptic number.

20310132310331 is a deficient number, since it is larger than the sum of its proper divisors (209382807421).

20310132310331 is an equidigital number, since it uses as much as digits as its factorization.

20310132310331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209382807420.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 20310132310331 its reverse (13301323101302), we get a palindrome (33611455411633).

The spelling of 20310132310331 in words is "twenty trillion, three hundred ten billion, one hundred thirty-two million, three hundred ten thousand, three hundred thirty-one".