1321358118 has 8 divisors (see below), whose sum is σ = 2642716248. Its totient is φ = 440452704.

The previous prime is 1321358111. The next prime is 1321358191. The reversal of 1321358118 is 8118531231.

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

1321358118 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321358111) 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, 110113171 + ... + 110113182.

It is an arithmetic number, because the mean of its divisors is an integer number (330339531).

Almost surely, 2^1321358118 is an apocalyptic number.

1321358118 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1321358118 is a wasteful number, since it uses less digits than its factorization.

1321358118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220226358.

The product of its digits is 5760, while the sum is 33.

The square root of 1321358118 is about 36350.4899279226. The cubic root of 1321358118 is about 1097.3373943884.

Adding to 1321358118 its reverse (8118531231), we get a palindrome (9439889349).

The spelling of 1321358118 in words is "one billion, three hundred twenty-one million, three hundred fifty-eight thousand, one hundred eighteen".