1331343322 has 4 divisors (see below), whose sum is σ = 1997014986. Its totient is φ = 665671660.

The previous prime is 1331343301. The next prime is 1331343337. The reversal of 1331343322 is 2233431331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2233431331 = 2939 ⋅759929.

It can be written as a sum of positive squares in only one way, i.e., 1041288361 + 290054961 = 32269^2 + 17031^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332835829 + ... + 332835832.

Almost surely, 2^1331343322 is an apocalyptic number.

1331343322 is a deficient number, since it is larger than the sum of its proper divisors (665671664).

1331343322 is an equidigital number, since it uses as much as digits as its factorization.

1331343322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665671663.

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

The square root of 1331343322 is about 36487.5776395200. The cubic root of 1331343322 is about 1100.0945709325.

Adding to 1331343322 its reverse (2233431331), we get a palindrome (3564774653).

The spelling of 1331343322 in words is "one billion, three hundred thirty-one million, three hundred forty-three thousand, three hundred twenty-two".