1331345322 has 40 divisors (see below), whose sum is σ = 3063840516. Its totient is φ = 431785728.

The previous prime is 1331345303. The next prime is 1331345341. The reversal of 1331345322 is 2235431331.

1331345322 is a `hidden beast` number, since 1 + 331 + 3 + 4 + 5 + 322 = 666.

It is an interprime number because it is at equal distance from previous prime (1331345303) and next prime (1331345341).

It can be written as a sum of positive squares in 2 ways, for example, as 1097530641 + 233814681 = 33129^2 + 15291^2 .

It is a super-2 number, since 2×1331345322² = 3544960732822567368, which contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 105063 + ... + 117050.

Almost surely, 2^1331345322 is an apocalyptic number.

1331345322 is an abundant number, since it is smaller than the sum of its proper divisors (1732495194).

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

1331345322 is a wasteful number, since it uses less digits than its factorization.

1331345322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222164 (or 222155 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 1331345322 is about 36487.6050460975. The cubic root of 1331345322 is about 1100.0951218017.

Adding to 1331345322 its reverse (2235431331), we get a palindrome (3566776653).

The spelling of 1331345322 in words is "one billion, three hundred thirty-one million, three hundred forty-five thousand, three hundred twenty-two".