1310400001 has 4 divisors (see below), whose sum is σ = 1387482372. Its totient is φ = 1233317632.

The previous prime is 1310399947. The next prime is 1310400011. The reversal of 1310400001 is 1000040131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1000040131 = 137 ⋅7299563.

It can be written as a sum of positive squares in 2 ways, for example, as 1025600625 + 284799376 = 32025^2 + 16876^2 .

It is not a de Polignac number, because 1310400001 - 2²⁹ = 773529089 is a prime.

It is a super-3 number, since 3×1310400001³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310400011) 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 3 ways as a sum of consecutive naturals, for example, 38541160 + ... + 38541193.

It is an arithmetic number, because the mean of its divisors is an integer number (346870593).

Almost surely, 2^1310400001 is an apocalyptic number.

It is an amenable number.

1310400001 is a deficient number, since it is larger than the sum of its proper divisors (77082371).

1310400001 is an equidigital number, since it uses as much as digits as its factorization.

1310400001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77082370.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1310400001 is about 36199.4475234084. The cubic root of 1310400001 is about 1094.2955376554.

Adding to 1310400001 its reverse (1000040131), we get a palindrome (2310440132).

The spelling of 1310400001 in words is "one billion, three hundred ten million, four hundred thousand, one".