102112013819 has 2 divisors, whose sum is σ = 102112013820. Its totient is φ = 102112013818.

The previous prime is 102112013813. The next prime is 102112013851. The reversal of 102112013819 is 918310211201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102112013819 - 2⁴ = 102112013803 is a prime.

It is a super-2 number, since 2×102112013819² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 102112013791 and 102112013800.

It is not a weakly prime, because it can be changed into another prime (102112013813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51056006909 + 51056006910.

It is an arithmetic number, because the mean of its divisors is an integer number (51056006910).

Almost surely, 2^102112013819 is an apocalyptic number.

102112013819 is a deficient number, since it is larger than the sum of its proper divisors (1).

102112013819 is an equidigital number, since it uses as much as digits as its factorization.

102112013819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 29.

The spelling of 102112013819 in words is "one hundred two billion, one hundred twelve million, thirteen thousand, eight hundred nineteen".