20002391093 has 2 divisors, whose sum is σ = 20002391094. Its totient is φ = 20002391092.

The previous prime is 20002391081. The next prime is 20002391191. The reversal of 20002391093 is 39019320002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19885794289 + 116596804 = 141017^2 + 10798^2 .

It is a cyclic number.

It is not a de Polignac number, because 20002391093 - 2¹² = 20002386997 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20002391033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001195546 + 10001195547.

It is an arithmetic number, because the mean of its divisors is an integer number (10001195547).

Almost surely, 2^20002391093 is an apocalyptic number.

It is an amenable number.

20002391093 is a deficient number, since it is larger than the sum of its proper divisors (1).

20002391093 is an equidigital number, since it uses as much as digits as its factorization.

20002391093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 29.

The spelling of 20002391093 in words is "twenty billion, two million, three hundred ninety-one thousand, ninety-three".