20113205719 has 2 divisors, whose sum is σ = 20113205720. Its totient is φ = 20113205718.

The previous prime is 20113205617. The next prime is 20113205729. The reversal of 20113205719 is 91750231102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20113205719 - 2⁷ = 20113205591 is a prime.

It is a super-2 number, since 2×20113205719² (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 (20113205729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056602859 + 10056602860.

It is an arithmetic number, because the mean of its divisors is an integer number (10056602860).

Almost surely, 2^20113205719 is an apocalyptic number.

20113205719 is a deficient number, since it is larger than the sum of its proper divisors (1).

20113205719 is an equidigital number, since it uses as much as digits as its factorization.

20113205719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 31.

The spelling of 20113205719 in words is "twenty billion, one hundred thirteen million, two hundred five thousand, seven hundred nineteen".