102130121113 has 4 divisors (see below), whose sum is σ = 102131271268. Its totient is φ = 102128970960.

The previous prime is 102130121099. The next prime is 102130121117. The reversal of 102130121113 is 311121031201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 311121031201 = 7691 ⋅40452611.

It can be written as a sum of positive squares in 2 ways, for example, as 1036646809 + 101093474304 = 32197^2 + 317952^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102130121113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102130121117) 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, 429618 + ... + 623563.

It is an arithmetic number, because the mean of its divisors is an integer number (25532817817).

Almost surely, 2^102130121113 is an apocalyptic number.

It is an amenable number.

102130121113 is a deficient number, since it is larger than the sum of its proper divisors (1150155).

102130121113 is an equidigital number, since it uses as much as digits as its factorization.

102130121113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150154.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 102130121113 its reverse (311121031201), we get a palindrome (413251152314).

The spelling of 102130121113 in words is "one hundred two billion, one hundred thirty million, one hundred twenty-one thousand, one hundred thirteen".