1313221323330 has 120 divisors (see below), whose sum is σ = 4107613487868. Its totient is φ = 300164864832.

The previous prime is 1313221323319. The next prime is 1313221323347. The reversal of 1313221323330 is 333231223131.

1313221323330 is a `hidden beast` number, since 1 + 3 + 1 + 3 + 2 + 2 + 1 + 323 + 330 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1266171809049 + 47049514281 = 1125243^2 + 216909^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1313221323294 and 1313221323303.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 16503789 + ... + 16583168.

Almost surely, 2^{1313221323330} is an apocalyptic number.

1313221323330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1313221323330 is an abundant number, since it is smaller than the sum of its proper divisors (2794392164538).

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

1313221323330 is a wasteful number, since it uses less digits than its factorization.

1313221323330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33086990 (or 33086974 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 1313221323330 its reverse (333231223131), we get a palindrome (1646452546461).

The spelling of 1313221323330 in words is "one trillion, three hundred thirteen billion, two hundred twenty-one million, three hundred twenty-three thousand, three hundred thirty".