1320223401 has 16 divisors (see below), whose sum is σ = 2235299200. Its totient is φ = 754413264.

The previous prime is 1320223393. The next prime is 1320223439. The reversal of 1320223401 is 1043220231.

1320223401 is a `hidden beast` number, since 1 + 320 + 2 + 2 + 340 + 1 = 666.

It is not a de Polignac number, because 1320223401 - 2³ = 1320223393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320222401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3492466 + ... + 3492843.

It is an arithmetic number, because the mean of its divisors is an integer number (139706200).

Almost surely, 2^1320223401 is an apocalyptic number.

It is an amenable number.

1320223401 is a deficient number, since it is larger than the sum of its proper divisors (915075799).

1320223401 is an equidigital number, since it uses as much as digits as its factorization.

1320223401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6985325 (or 6985319 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1320223401 is about 36334.8785741744. The cubic root of 1320223401 is about 1097.0231914032.

Adding to 1320223401 its reverse (1043220231), we get a palindrome (2363443632).

The spelling of 1320223401 in words is "one billion, three hundred twenty million, two hundred twenty-three thousand, four hundred one".