1312233342 has 128 divisors (see below), whose sum is σ = 3184558080. Its totient is φ = 352719360.

The previous prime is 1312233323. The next prime is 1312233359. The reversal of 1312233342 is 2433322131.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 10332483 + ... + 10332609.

It is an arithmetic number, because the mean of its divisors is an integer number (24879360).

Almost surely, 2^1312233342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1312233342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1592279040).

1312233342 is an abundant number, since it is smaller than the sum of its proper divisors (1872324738).

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

1312233342 is a wasteful number, since it uses less digits than its factorization.

1312233342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346.

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

The square root of 1312233342 is about 36224.7614484899. The cubic root of 1312233342 is about 1094.8056317712.

Adding to 1312233342 its reverse (2433322131), we get a palindrome (3745555473).

It can be divided in two parts, 13122 and 33342, that added together give a palindrome (46464).

The spelling of 1312233342 in words is "one billion, three hundred twelve million, two hundred thirty-three thousand, three hundred forty-two".