1312001401 has 16 divisors (see below), whose sum is σ = 1408821120. Its totient is φ = 1217491200.

The previous prime is 1312001399. The next prime is 1312001417. The reversal of 1312001401 is 1041002131.

It is a cyclic number.

It is not a de Polignac number, because 1312001401 - 2¹ = 1312001399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312001491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 354975 + ... + 358651.

It is an arithmetic number, because the mean of its divisors is an integer number (88051320).

Almost surely, 2^1312001401 is an apocalyptic number.

It is an amenable number.

1312001401 is a deficient number, since it is larger than the sum of its proper divisors (96819719).

1312001401 is a wasteful number, since it uses less digits than its factorization.

1312001401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3984.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1312001401 is about 36221.5598918655. The cubic root of 1312001401 is about 1094.7411246272.

Adding to 1312001401 its reverse (1041002131), we get a palindrome (2353003532).

The spelling of 1312001401 in words is "one billion, three hundred twelve million, one thousand, four hundred one".