20099136019 has 2 divisors, whose sum is σ = 20099136020. Its totient is φ = 20099136018.

The previous prime is 20099136007. The next prime is 20099136061. The reversal of 20099136019 is 91063199002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20099136019 - 2¹⁵ = 20099103251 is a prime.

It is a super-2 number, since 2×20099136019² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20099136419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10049568009 + 10049568010.

It is an arithmetic number, because the mean of its divisors is an integer number (10049568010).

Almost surely, 2^20099136019 is an apocalyptic number.

20099136019 is a deficient number, since it is larger than the sum of its proper divisors (1).

20099136019 is an equidigital number, since it uses as much as digits as its factorization.

20099136019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26244, while the sum is 40.

The spelling of 20099136019 in words is "twenty billion, ninety-nine million, one hundred thirty-six thousand, nineteen".