1312012322 has 8 divisors (see below), whose sum is σ = 2053584576. Its totient is φ = 627484132.

The previous prime is 1312012319. The next prime is 1312012343. The reversal of 1312012322 is 2232102131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1312012322.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14260958 + ... + 14261049.

It is an arithmetic number, because the mean of its divisors is an integer number (256698072).

Almost surely, 2^1312012322 is an apocalyptic number.

1312012322 is a deficient number, since it is larger than the sum of its proper divisors (741572254).

1312012322 is a wasteful number, since it uses less digits than its factorization.

1312012322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28522032.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1312012322 is about 36221.7106443083. The cubic root of 1312012322 is about 1094.7441621327.

Adding to 1312012322 its reverse (2232102131), we get a palindrome (3544114453).

The spelling of 1312012322 in words is "one billion, three hundred twelve million, twelve thousand, three hundred twenty-two".