20111265359 has 2 divisors, whose sum is σ = 20111265360. Its totient is φ = 20111265358.

The previous prime is 20111265323. The next prime is 20111265367. The reversal of 20111265359 is 95356211102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20111265359 - 2²⁰ = 20110216783 is a prime.

It is a super-2 number, since 2×20111265359² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20111265959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055632679 + 10055632680.

It is an arithmetic number, because the mean of its divisors is an integer number (10055632680).

Almost surely, 2^20111265359 is an apocalyptic number.

20111265359 is a deficient number, since it is larger than the sum of its proper divisors (1).

20111265359 is an equidigital number, since it uses as much as digits as its factorization.

20111265359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 35.

The spelling of 20111265359 in words is "twenty billion, one hundred eleven million, two hundred sixty-five thousand, three hundred fifty-nine".