1320142055 has 32 divisors (see below), whose sum is σ = 1738946880. Its totient is φ = 958003200.

The previous prime is 1320142027. The next prime is 1320142069. The reversal of 1320142055 is 5502410231.

It is not a de Polignac number, because 1320142055 - 2²⁶ = 1253033191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1320142055.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 340880 + ... + 344730.

It is an arithmetic number, because the mean of its divisors is an integer number (54342090).

Almost surely, 2^1320142055 is an apocalyptic number.

1320142055 is a deficient number, since it is larger than the sum of its proper divisors (418804825).

1320142055 is a wasteful number, since it uses less digits than its factorization.

1320142055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4019.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1320142055 is about 36333.7591641713. The cubic root of 1320142055 is about 1097.0006597919. Note that the first 3 decimals are identical.

Adding to 1320142055 its reverse (5502410231), we get a palindrome (6822552286).

The spelling of 1320142055 in words is "one billion, three hundred twenty million, one hundred forty-two thousand, fifty-five".