20013574433 has 2 divisors, whose sum is σ = 20013574434. Its totient is φ = 20013574432.

The previous prime is 20013574423. The next prime is 20013574439. The reversal of 20013574433 is 33447531002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19525031824 + 488542609 = 139732^2 + 22103^2 .

It is a cyclic number.

It is not a de Polignac number, because 20013574433 - 2¹⁴ = 20013558049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20013574433.

It is not a weakly prime, because it can be changed into another prime (20013574439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006787216 + 10006787217.

It is an arithmetic number, because the mean of its divisors is an integer number (10006787217).

Almost surely, 2^20013574433 is an apocalyptic number.

It is an amenable number.

20013574433 is a deficient number, since it is larger than the sum of its proper divisors (1).

20013574433 is an equidigital number, since it uses as much as digits as its factorization.

20013574433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 32.

The spelling of 20013574433 in words is "twenty billion, thirteen million, five hundred seventy-four thousand, four hundred thirty-three".