20001199711 has 2 divisors, whose sum is σ = 20001199712. Its totient is φ = 20001199710.

The previous prime is 20001199679. The next prime is 20001199733. The reversal of 20001199711 is 11799110002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20001199711 - 2⁵ = 20001199679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20001199511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000599855 + 10000599856.

It is an arithmetic number, because the mean of its divisors is an integer number (10000599856).

Almost surely, 2^20001199711 is an apocalyptic number.

20001199711 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001199711 is an equidigital number, since it uses as much as digits as its factorization.

20001199711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 31.

The spelling of 20001199711 in words is "twenty billion, one million, one hundred ninety-nine thousand, seven hundred eleven".