1320182899 has 4 divisors (see below), whose sum is σ = 1508780464. Its totient is φ = 1131585336.

The previous prime is 1320182887. The next prime is 1320182933. The reversal of 1320182899 is 9982810231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9982810231 = 71 ⋅140602961.

It is not a de Polignac number, because 1320182899 - 2⁹ = 1320182387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320182849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94298772 + ... + 94298785.

It is an arithmetic number, because the mean of its divisors is an integer number (377195116).

Almost surely, 2^1320182899 is an apocalyptic number.

1320182899 is a deficient number, since it is larger than the sum of its proper divisors (188597565).

1320182899 is an equidigital number, since it uses as much as digits as its factorization.

1320182899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188597564.

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 1320182899 is about 36334.3212266309. The cubic root of 1320182899 is about 1097.0119730777.

It can be divided in two parts, 13201 and 82899, that added together give a square (96100 = 310²).

The spelling of 1320182899 in words is "one billion, three hundred twenty million, one hundred eighty-two thousand, eight hundred ninety-nine".