130102120121 has 4 divisors (see below), whose sum is σ = 130223825700. Its totient is φ = 129980414544.

The previous prime is 130102120069. The next prime is 130102120151. The reversal of 130102120121 is 121021201031.

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

It can be written as a sum of positive squares in 2 ways, for example, as 53192964496 + 76909155625 = 230636^2 + 277325^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130102120121 is a prime.

It is a super-2 number, since 2×130102120121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130102120096 and 130102120105.

It is not an unprimeable number, because it can be changed into a prime (130102120151) 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, 60851186 + ... + 60853323.

It is an arithmetic number, because the mean of its divisors is an integer number (32555956425).

Almost surely, 2^130102120121 is an apocalyptic number.

It is an amenable number.

130102120121 is a deficient number, since it is larger than the sum of its proper divisors (121705579).

130102120121 is a wasteful number, since it uses less digits than its factorization.

130102120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121705578.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 130102120121 its reverse (121021201031), we get a palindrome (251123321152).

The spelling of 130102120121 in words is "one hundred thirty billion, one hundred two million, one hundred twenty thousand, one hundred twenty-one".