20333023121311 has 2 divisors, whose sum is σ = 20333023121312. Its totient is φ = 20333023121310.

The previous prime is 20333023121297. The next prime is 20333023121347. The reversal of 20333023121311 is 11312132033302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20333023121311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20333023191311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10166511560655 + 10166511560656.

It is an arithmetic number, because the mean of its divisors is an integer number (10166511560656).

Almost surely, 2^{20333023121311} is an apocalyptic number.

20333023121311 is a deficient number, since it is larger than the sum of its proper divisors (1).

20333023121311 is an equidigital number, since it uses as much as digits as its factorization.

20333023121311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 20333023121311 its reverse (11312132033302), we get a palindrome (31645155154613).

The spelling of 20333023121311 in words is "twenty trillion, three hundred thirty-three billion, twenty-three million, one hundred twenty-one thousand, three hundred eleven".