1244311312 has 10 divisors (see below), whose sum is σ = 2410853198. Its totient is φ = 622155648.

The previous prime is 1244311309. The next prime is 1244311333. The reversal of 1244311312 is 2131134421.

It can be written as a sum of positive squares in only one way, i.e., 1122518016 + 121793296 = 33504^2 + 11036^2 .

It is a super-2 number, since 2×1244311312² = 3096621282342322688, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38884713 + ... + 38884744.

Almost surely, 2^1244311312 is an apocalyptic number.

It is an amenable number.

1244311312 is a deficient number, since it is larger than the sum of its proper divisors (1166541886).

1244311312 is an equidigital number, since it uses as much as digits as its factorization.

1244311312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77769465 (or 77769459 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 1244311312 is about 35274.7971220247. The cubic root of 1244311312 is about 1075.5807388926.

Adding to 1244311312 its reverse (2131134421), we get a palindrome (3375445733).

The spelling of 1244311312 in words is "one billion, two hundred forty-four million, three hundred eleven thousand, three hundred twelve".