2130121312113 has 4 divisors (see below), whose sum is σ = 2840161749488. Its totient is φ = 1420080874740.

The previous prime is 2130121312097. The next prime is 2130121312157. The reversal of 2130121312113 is 3112131210312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2130121312113 - 2⁴ = 2130121312097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2130121312113.

It is not an unprimeable number, because it can be changed into a prime (2130121311113) 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, 355020218683 + ... + 355020218688.

It is an arithmetic number, because the mean of its divisors is an integer number (710040437372).

Almost surely, 2^{2130121312113} is an apocalyptic number.

It is an amenable number.

2130121312113 is a deficient number, since it is larger than the sum of its proper divisors (710040437375).

2130121312113 is an equidigital number, since it uses as much as digits as its factorization.

2130121312113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710040437374.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 2130121312113 its reverse (3112131210312), we get a palindrome (5242252522425).

The spelling of 2130121312113 in words is "two trillion, one hundred thirty billion, one hundred twenty-one million, three hundred twelve thousand, one hundred thirteen".