2120040131321 has 12 divisors (see below), whose sum is σ = 2466276255360. Its totient is φ = 1817098322760.

The previous prime is 2120040131303. The next prime is 2120040131329. The reversal of 2120040131321 is 1231310400212.

It is not a de Polignac number, because 2120040131321 - 2⁶ = 2120040131257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2120040131293 and 2120040131302.

It is not an unprimeable number, because it can be changed into a prime (2120040131329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 214220 + ... + 2070258.

It is an arithmetic number, because the mean of its divisors is an integer number (205523021280).

Almost surely, 2^{2120040131321} is an apocalyptic number.

It is an amenable number.

2120040131321 is a deficient number, since it is larger than the sum of its proper divisors (346236124039).

2120040131321 is a wasteful number, since it uses less digits than its factorization.

2120040131321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879364 (or 1879357 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2120040131321 its reverse (1231310400212), we get a palindrome (3351350531533).

The spelling of 2120040131321 in words is "two trillion, one hundred twenty billion, forty million, one hundred thirty-one thousand, three hundred twenty-one".