20330031011333 has 2 divisors, whose sum is σ = 20330031011334. Its totient is φ = 20330031011332.

The previous prime is 20330031011321. The next prime is 20330031011341. The reversal of 20330031011333 is 33311013003302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13826067228964 + 6503963782369 = 3718342^2 + 2550287^2 .

It is a cyclic number.

It is not a de Polignac number, because 20330031011333 - 2²² = 20330026817029 is a prime.

It is a super-2 number, since 2×20330031011333² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20330031011299 and 20330031011308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20330031011833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165015505666 + 10165015505667.

It is an arithmetic number, because the mean of its divisors is an integer number (10165015505667).

Almost surely, 2^{20330031011333} is an apocalyptic number.

It is an amenable number.

20330031011333 is a deficient number, since it is larger than the sum of its proper divisors (1).

20330031011333 is an equidigital number, since it uses as much as digits as its factorization.

20330031011333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 20330031011333 its reverse (33311013003302), we get a palindrome (53641044014635).

The spelling of 20330031011333 in words is "twenty trillion, three hundred thirty billion, thirty-one million, eleven thousand, three hundred thirty-three".