1213004401 has 8 divisors (see below), whose sum is σ = 1391408384. Its totient is φ = 1035879840.

The previous prime is 1213004371. The next prime is 1213004467. The reversal of 1213004401 is 1044003121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1213004401 - 2⁹ = 1213003889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213004491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317820 + ... + 321613.

It is an arithmetic number, because the mean of its divisors is an integer number (173926048).

Almost surely, 2^1213004401 is an apocalyptic number.

It is an amenable number.

1213004401 is a deficient number, since it is larger than the sum of its proper divisors (178403983).

1213004401 is an equidigital number, since it uses as much as digits as its factorization.

1213004401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639711.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1213004401 is about 34828.2127161300. The cubic root of 1213004401 is about 1066.4834627524.

Adding to 1213004401 its reverse (1044003121), we get a palindrome (2257007522).

The spelling of 1213004401 in words is "one billion, two hundred thirteen million, four thousand, four hundred one".