1200364401 has 4 divisors (see below), whose sum is σ = 1600485872. Its totient is φ = 800242932.

The previous prime is 1200364391. The next prime is 1200364439. The reversal of 1200364401 is 1044630021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1200364401 - 2⁶ = 1200364337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200364001) 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, 200060731 + ... + 200060736.

It is an arithmetic number, because the mean of its divisors is an integer number (400121468).

Almost surely, 2^1200364401 is an apocalyptic number.

It is an amenable number.

1200364401 is a deficient number, since it is larger than the sum of its proper divisors (400121471).

1200364401 is an equidigital number, since it uses as much as digits as its factorization.

1200364401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400121470.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1200364401 is about 34646.2754275261. The cubic root of 1200364401 is about 1062.7661232535.

Adding to 1200364401 its reverse (1044630021), we get a palindrome (2244994422).

The spelling of 1200364401 in words is "one billion, two hundred million, three hundred sixty-four thousand, four hundred one".