102111013013 has 4 divisors (see below), whose sum is σ = 103784964108. Its totient is φ = 100437061920.

The previous prime is 102111013007. The next prime is 102111013019. The reversal of 102111013013 is 310310111201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (102111013007) and next prime (102111013019).

It can be written as a sum of positive squares in 2 ways, for example, as 38444621329 + 63666391684 = 196073^2 + 252322^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102111013013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102111013019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 836975456 + ... + 836975577.

It is an arithmetic number, because the mean of its divisors is an integer number (25946241027).

Almost surely, 2^102111013013 is an apocalyptic number.

It is an amenable number.

102111013013 is a deficient number, since it is larger than the sum of its proper divisors (1673951095).

102111013013 is an equidigital number, since it uses as much as digits as its factorization.

102111013013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673951094.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 102111013013 its reverse (310310111201), we get a palindrome (412421124214).

The spelling of 102111013013 in words is "one hundred two billion, one hundred eleven million, thirteen thousand, thirteen".