1331243322 has 64 divisors (see below), whose sum is σ = 2874286080. Its totient is φ = 409720896.

The previous prime is 1331243317. The next prime is 1331243351. The reversal of 1331243322 is 2233421331.

It is a junction number, because it is equal to n+sod(n) for n = 1331243292 and 1331243301.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1966048 + ... + 1966724.

It is an arithmetic number, because the mean of its divisors is an integer number (44910720).

Almost surely, 2^1331243322 is an apocalyptic number.

1331243322 is an abundant number, since it is smaller than the sum of its proper divisors (1543042758).

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

1331243322 is a wasteful number, since it uses less digits than its factorization.

1331243322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115.

The product of its digits is 2592, while the sum is 24.

The square root of 1331243322 is about 36486.2072843972. The cubic root of 1331243322 is about 1100.0670267697.

Adding to 1331243322 its reverse (2233421331), we get a palindrome (3564664653).

The spelling of 1331243322 in words is "one billion, three hundred thirty-one million, two hundred forty-three thousand, three hundred twenty-two".