1312032322 has 4 divisors (see below), whose sum is σ = 1968048486. Its totient is φ = 656016160.

The previous prime is 1312032299. The next prime is 1312032343. The reversal of 1312032322 is 2232302131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2232302131 = 79 ⋅28256989.

It can be written as a sum of positive squares in only one way, i.e., 743162121 + 568870201 = 27261^2 + 23851^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1312032322.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328008079 + ... + 328008082.

Almost surely, 2^1312032322 is an apocalyptic number.

1312032322 is a deficient number, since it is larger than the sum of its proper divisors (656016164).

1312032322 is an equidigital number, since it uses as much as digits as its factorization.

1312032322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656016163.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1312032322 is about 36221.9867207750. The cubic root of 1312032322 is about 1094.7497247766.

Adding to 1312032322 its reverse (2232302131), we get a palindrome (3544334453).

The spelling of 1312032322 in words is "one billion, three hundred twelve million, thirty-two thousand, three hundred twenty-two".