1313320233220 has 48 divisors (see below), whose sum is σ = 2802062688768. Its totient is φ = 516979220480.

The previous prime is 1313320233209. The next prime is 1313320233233. The reversal of 1313320233220 is 223320233131.

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, 1112596 + ... + 1965835.

It is an arithmetic number, because the mean of its divisors is an integer number (58376306016).

Almost surely, 2^{1313320233220} is an apocalyptic number.

1313320233220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313320233220 is an abundant number, since it is smaller than the sum of its proper divisors (1488742455548).

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

1313320233220 is a wasteful number, since it uses less digits than its factorization.

1313320233220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3078780 (or 3078778 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 1313320233220 its reverse (223320233131), we get a palindrome (1536640466351).

The spelling of 1313320233220 in words is "one trillion, three hundred thirteen billion, three hundred twenty million, two hundred thirty-three thousand, two hundred twenty".