1312001441 has 4 divisors (see below), whose sum is σ = 1357242900. Its totient is φ = 1266759984.

The previous prime is 1312001419. The next prime is 1312001459. The reversal of 1312001441 is 1441002131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1040707600 + 271293841 = 32260^2 + 16471^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312001441 - 2⁶ = 1312001377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1312001491) 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, 22620686 + ... + 22620743.

It is an arithmetic number, because the mean of its divisors is an integer number (339310725).

Almost surely, 2^1312001441 is an apocalyptic number.

It is an amenable number.

1312001441 is a deficient number, since it is larger than the sum of its proper divisors (45241459).

1312001441 is an equidigital number, since it uses as much as digits as its factorization.

1312001441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45241458.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1312001441 is about 36221.5604440228. The cubic root of 1312001441 is about 1094.7411357526.

Adding to 1312001441 its reverse (1441002131), we get a palindrome (2753003572).

The spelling of 1312001441 in words is "one billion, three hundred twelve million, one thousand, four hundred forty-one".