1313421215 has 16 divisors (see below), whose sum is σ = 1601402880. Its totient is φ = 1033961760.

The previous prime is 1313421209. The next prime is 1313421229. The reversal of 1313421215 is 5121243131.

It is not a de Polignac number, because 1313421215 - 2⁸ = 1313420959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115850 + ... + 126680.

It is an arithmetic number, because the mean of its divisors is an integer number (100087680).

Almost surely, 2^1313421215 is an apocalyptic number.

1313421215 is a deficient number, since it is larger than the sum of its proper divisors (287981665).

1313421215 is a wasteful number, since it uses less digits than its factorization.

1313421215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11222.

The product of its digits is 720, while the sum is 23.

The square root of 1313421215 is about 36241.1536102260. The cubic root of 1313421215 is about 1095.1358824442.

Adding to 1313421215 its reverse (5121243131), we get a palindrome (6434664346).

The spelling of 1313421215 in words is "one billion, three hundred thirteen million, four hundred twenty-one thousand, two hundred fifteen".