2113111015819 has 2 divisors, whose sum is σ = 2113111015820. Its totient is φ = 2113111015818.

The previous prime is 2113111015783. The next prime is 2113111015831. The reversal of 2113111015819 is 9185101113112.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2113111015819 - 2²³ = 2113102627211 is a prime.

It is a super-2 number, since 2×2113111015819² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2113111015859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056555507909 + 1056555507910.

It is an arithmetic number, because the mean of its divisors is an integer number (1056555507910).

Almost surely, 2^{2113111015819} is an apocalyptic number.

2113111015819 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113111015819 is an equidigital number, since it uses as much as digits as its factorization.

2113111015819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 34.

The spelling of 2113111015819 in words is "two trillion, one hundred thirteen billion, one hundred eleven million, fifteen thousand, eight hundred nineteen".