1273311112 has 32 divisors (see below), whose sum is σ = 2466777600. Its totient is φ = 615542400.

The previous prime is 1273311103. The next prime is 1273311161. The reversal of 1273311112 is 2111133721.

It is a super-3 number, since 3×1273311112³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397437 + ... + 400627.

It is an arithmetic number, because the mean of its divisors is an integer number (77086800).

Almost surely, 2^1273311112 is an apocalyptic number.

It is an amenable number.

1273311112 is a deficient number, since it is larger than the sum of its proper divisors (1193466488).

1273311112 is a wasteful number, since it uses less digits than its factorization.

1273311112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4837 (or 4833 counting only the distinct ones).

The product of its digits is 252, while the sum is 22.

The square root of 1273311112 is about 35683.4851436908. The cubic root of 1273311112 is about 1083.8724472402.

Adding to 1273311112 its reverse (2111133721), we get a palindrome (3384444833).

The spelling of 1273311112 in words is "one billion, two hundred seventy-three million, three hundred eleven thousand, one hundred twelve".