20110093721513 has 2 divisors, whose sum is σ = 20110093721514. Its totient is φ = 20110093721512.

The previous prime is 20110093721491. The next prime is 20110093721519. The reversal of 20110093721513 is 31512739001102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13221426832384 + 6888666889129 = 3636128^2 + 2624627^2 .

It is a cyclic number.

It is not a de Polignac number, because 20110093721513 - 2²⁰ = 20110092672937 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (20110093721519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055046860756 + 10055046860757.

It is an arithmetic number, because the mean of its divisors is an integer number (10055046860757).

Almost surely, 2^{20110093721513} is an apocalyptic number.

It is an amenable number.

20110093721513 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110093721513 is an equidigital number, since it uses as much as digits as its factorization.

20110093721513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 35.

The spelling of 20110093721513 in words is "twenty trillion, one hundred ten billion, ninety-three million, seven hundred twenty-one thousand, five hundred thirteen".