1313213215 has 16 divisors (see below), whose sum is σ = 1660439520. Its totient is φ = 994291200.

The previous prime is 1313213207. The next prime is 1313213219. The reversal of 1313213215 is 5123123131.

It is not a de Polignac number, because 1313213215 - 2³ = 1313213207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313213219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97915 + ... + 110515.

It is an arithmetic number, because the mean of its divisors is an integer number (103777470).

Almost surely, 2^1313213215 is an apocalyptic number.

1313213215 is a deficient number, since it is larger than the sum of its proper divisors (347226305).

1313213215 is a wasteful number, since it uses less digits than its factorization.

1313213215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13722.

The product of its digits is 540, while the sum is 22.

The square root of 1313213215 is about 36238.2838307776. The cubic root of 1313213215 is about 1095.0780689806.

Adding to 1313213215 its reverse (5123123131), we get a palindrome (6436336346).

The spelling of 1313213215 in words is "one billion, three hundred thirteen million, two hundred thirteen thousand, two hundred fifteen".