2142255331 has 2 divisors, whose sum is σ = 2142255332. Its totient is φ = 2142255330.

The previous prime is 2142255319. The next prime is 2142255361. The reversal of 2142255331 is 1335522412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2142255331 - 2⁹ = 2142254819 is a prime.

It is a super-2 number, since 2×2142255331² = 9178515806395839122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2142255331.

It is not a weakly prime, because it can be changed into another prime (2142255361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071127665 + 1071127666.

It is an arithmetic number, because the mean of its divisors is an integer number (1071127666).

Almost surely, 2^2142255331 is an apocalyptic number.

2142255331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142255331 is an equidigital number, since it uses as much as digits as its factorization.

2142255331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 28.

The square root of 2142255331 is about 46284.5042211754. The cubic root of 2142255331 is about 1289.1112864071. Note that the first 3 decimals are identical.

Adding to 2142255331 its reverse (1335522412), we get a palindrome (3477777743).

The spelling of 2142255331 in words is "two billion, one hundred forty-two million, two hundred fifty-five thousand, three hundred thirty-one".