2142055321 has 16 divisors (see below), whose sum is σ = 2495157760. Its totient is φ = 1800895680.

The previous prime is 2142055271. The next prime is 2142055327. The reversal of 2142055321 is 1235502412.

It is not a de Polignac number, because 2142055321 - 2²⁹ = 1605184409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2142055327) 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, 149875 + ... + 163543.

It is an arithmetic number, because the mean of its divisors is an integer number (155947360).

Almost surely, 2^2142055321 is an apocalyptic number.

It is an amenable number.

2142055321 is a deficient number, since it is larger than the sum of its proper divisors (353102439).

2142055321 is a wasteful number, since it uses less digits than its factorization.

2142055321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14104.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2142055321 is about 46282.3435124022. The cubic root of 2142055321 is about 1289.0711662015.

Adding to 2142055321 its reverse (1235502412), we get a palindrome (3377557733).

The spelling of 2142055321 in words is "two billion, one hundred forty-two million, fifty-five thousand, three hundred twenty-one".