20311120310323 has 2 divisors, whose sum is σ = 20311120310324. Its totient is φ = 20311120310322.

The previous prime is 20311120310293. The next prime is 20311120310329. The reversal of 20311120310323 is 32301302111302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20311120310323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20311120310294 and 20311120310303.

It is not a weakly prime, because it can be changed into another prime (20311120310329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10155560155161 + 10155560155162.

It is an arithmetic number, because the mean of its divisors is an integer number (10155560155162).

Almost surely, 2^{20311120310323} is an apocalyptic number.

20311120310323 is a deficient number, since it is larger than the sum of its proper divisors (1).

20311120310323 is an equidigital number, since it uses as much as digits as its factorization.

20311120310323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 20311120310323 its reverse (32301302111302), we get a palindrome (52612422421625).

The spelling of 20311120310323 in words is "twenty trillion, three hundred eleven billion, one hundred twenty million, three hundred ten thousand, three hundred twenty-three".