2130121300999 has 4 divisors (see below), whose sum is σ = 2242232948440. Its totient is φ = 2018009653560.

The previous prime is 2130121300997. The next prime is 2130121301003. The reversal of 2130121300999 is 9990031210312.

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

It is a cyclic number.

It is not a de Polignac number, because 2130121300999 - 2¹ = 2130121300997 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 (2130121300997) 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, 56055823692 + ... + 56055823729.

It is an arithmetic number, because the mean of its divisors is an integer number (560558237110).

Almost surely, 2^{2130121300999} is an apocalyptic number.

2130121300999 is a deficient number, since it is larger than the sum of its proper divisors (112111647441).

2130121300999 is a wasteful number, since it uses less digits than its factorization.

2130121300999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112111647440.

The product of its (nonzero) digits is 26244, while the sum is 40.

The spelling of 2130121300999 in words is "two trillion, one hundred thirty billion, one hundred twenty-one million, three hundred thousand, nine hundred ninety-nine".