20133038389 has 2 divisors, whose sum is σ = 20133038390. Its totient is φ = 20133038388.

The previous prime is 20133038363. The next prime is 20133038407. The reversal of 20133038389 is 98383033102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11111268100 + 9021770289 = 105410^2 + 94983^2 .

It is a cyclic number.

It is not a de Polignac number, because 20133038389 - 2⁵ = 20133038357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20133036389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066519194 + 10066519195.

It is an arithmetic number, because the mean of its divisors is an integer number (10066519195).

Almost surely, 2^20133038389 is an apocalyptic number.

It is an amenable number.

20133038389 is a deficient number, since it is larger than the sum of its proper divisors (1).

20133038389 is an equidigital number, since it uses as much as digits as its factorization.

20133038389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 20133038389 in words is "twenty billion, one hundred thirty-three million, thirty-eight thousand, three hundred eighty-nine".