1313503401 has 8 divisors (see below), whose sum is σ = 2001529024. Its totient is φ = 750573360.

The previous prime is 1313503363. The next prime is 1313503403. The reversal of 1313503401 is 1043053131.

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

It is not a de Polignac number, because 1313503401 - 2⁷ = 1313503273 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 62547781 = 1313503401 / (1 + 3 + 1 + 3 + 5 + 0 + 3 + 4 + 0 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1313503403) 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, 31273870 + ... + 31273911.

It is an arithmetic number, because the mean of its divisors is an integer number (250191128).

Almost surely, 2^1313503401 is an apocalyptic number.

It is an amenable number.

1313503401 is a deficient number, since it is larger than the sum of its proper divisors (688025623).

1313503401 is an equidigital number, since it uses as much as digits as its factorization.

1313503401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62547791.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 1313503401 is about 36242.2874691982. The cubic root of 1313503401 is about 1095.1587243067.

Adding to 1313503401 its reverse (1043053131), we get a palindrome (2356556532).

The spelling of 1313503401 in words is "one billion, three hundred thirteen million, five hundred three thousand, four hundred one".