20010033389 has 2 divisors, whose sum is σ = 20010033390. Its totient is φ = 20010033388.

The previous prime is 20010033317. The next prime is 20010033397. The reversal of 20010033389 is 98333001002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19587402025 + 422631364 = 139955^2 + 20558^2 .

It is a cyclic number.

It is not a de Polignac number, because 20010033389 - 2¹⁶ = 20009967853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20010032389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005016694 + 10005016695.

It is an arithmetic number, because the mean of its divisors is an integer number (10005016695).

Almost surely, 2^20010033389 is an apocalyptic number.

It is an amenable number.

20010033389 is a deficient number, since it is larger than the sum of its proper divisors (1).

20010033389 is an equidigital number, since it uses as much as digits as its factorization.

20010033389 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 29.

The spelling of 20010033389 in words is "twenty billion, ten million, thirty-three thousand, three hundred eighty-nine".