1312213418 has 8 divisors (see below), whose sum is σ = 1969587360. Its totient is φ = 655684300.

The previous prime is 1312213417. The next prime is 1312213423. The reversal of 1312213418 is 8143122131.

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

It is not an unprimeable number, because it can be changed into a prime (1312213417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207308 + ... + 213543.

It is an arithmetic number, because the mean of its divisors is an integer number (246198420).

Almost surely, 2^1312213418 is an apocalyptic number.

1312213418 is a deficient number, since it is larger than the sum of its proper divisors (657373942).

1312213418 is a wasteful number, since it uses less digits than its factorization.

1312213418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422412.

The product of its digits is 1152, while the sum is 26.

The square root of 1312213418 is about 36224.4864421844. The cubic root of 1312213418 is about 1094.8000908314.

Adding to 1312213418 its reverse (8143122131), we get a palindrome (9455335549).

The spelling of 1312213418 in words is "one billion, three hundred twelve million, two hundred thirteen thousand, four hundred eighteen".