2121320303130 has 64 divisors (see below), whose sum is σ = 6019115754240. Its totient is φ = 468153444864.

The previous prime is 2121320303129. The next prime is 2121320303153. The reversal of 2121320303130 is 313030231212.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2121320303097 and 2121320303106.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 174158139 + ... + 174170318.

It is an arithmetic number, because the mean of its divisors is an integer number (94048683660).

Almost surely, 2^{2121320303130} is an apocalyptic number.

2121320303130 is an abundant number, since it is smaller than the sum of its proper divisors (3897795451110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2121320303130 is a wasteful number, since it uses less digits than its factorization.

2121320303130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348328503.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 2121320303130 its reverse (313030231212), we get a palindrome (2434350534342).

The spelling of 2121320303130 in words is "two trillion, one hundred twenty-one billion, three hundred twenty million, three hundred three thousand, one hundred thirty".