20133131383 has 2 divisors, whose sum is σ = 20133131384. Its totient is φ = 20133131382.

The previous prime is 20133131377. The next prime is 20133131441. The reversal of 20133131383 is 38313133102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20133131383 - 2²⁵ = 20099576951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20133131353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066565691 + 10066565692.

It is an arithmetic number, because the mean of its divisors is an integer number (10066565692).

Almost surely, 2^20133131383 is an apocalyptic number.

20133131383 is a deficient number, since it is larger than the sum of its proper divisors (1).

20133131383 is an equidigital number, since it uses as much as digits as its factorization.

20133131383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 20133131383 its reverse (38313133102), we get a palindrome (58446264485).

The spelling of 20133131383 in words is "twenty billion, one hundred thirty-three million, one hundred thirty-one thousand, three hundred eighty-three".