102111011019 has 16 divisors (see below), whose sum is σ = 151494522240. Its totient is φ = 67975479720.

The previous prime is 102111010999. The next prime is 102111011033. The reversal of 102111011019 is 910110111201.

It is not a de Polignac number, because 102111011019 - 2⁵ = 102111010987 is a prime.

It is a super-2 number, since 2×102111011019² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102111010992 and 102111011010.

It is not an unprimeable number, because it can be changed into a prime (102111011719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2717877 + ... + 2755190.

It is an arithmetic number, because the mean of its divisors is an integer number (9468407640).

Almost surely, 2^102111011019 is an apocalyptic number.

102111011019 is a deficient number, since it is larger than the sum of its proper divisors (49383511221).

102111011019 is an equidigital number, since it uses as much as digits as its factorization.

102111011019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5473767 (or 5473761 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 18.

The spelling of 102111011019 in words is "one hundred two billion, one hundred eleven million, eleven thousand, nineteen".