2120303131321 has 16 divisors (see below), whose sum is σ = 2206112388480. Its totient is φ = 2036410104960.

The previous prime is 2120303131267. The next prime is 2120303131339. The reversal of 2120303131321 is 1231313030212.

It is a cyclic number.

It is not a de Polignac number, because 2120303131321 - 2²⁷ = 2120168913593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120303131292 and 2120303131301.

It is not an unprimeable number, because it can be changed into a prime (2120303131621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 837805 + ... + 2223178.

It is an arithmetic number, because the mean of its divisors is an integer number (137882024280).

Almost surely, 2^{2120303131321} is an apocalyptic number.

It is an amenable number.

2120303131321 is a deficient number, since it is larger than the sum of its proper divisors (85809257159).

2120303131321 is a wasteful number, since it uses less digits than its factorization.

2120303131321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3061296.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 2120303131321 its reverse (1231313030212), we get a palindrome (3351616161533).

The spelling of 2120303131321 in words is "two trillion, one hundred twenty billion, three hundred three million, one hundred thirty-one thousand, three hundred twenty-one".