1277323237112 has 32 divisors (see below), whose sum is σ = 2582681885280. Its totient is φ = 588740315520.

The previous prime is 1277323237111. The next prime is 1277323237117. The reversal of 1277323237112 is 2117323237721.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1277323237112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1277323237111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8187839 + ... + 8342382.

It is an arithmetic number, because the mean of its divisors is an integer number (80708808915).

Almost surely, 2^{1277323237112} is an apocalyptic number.

It is an amenable number.

1277323237112 is an abundant number, since it is smaller than the sum of its proper divisors (1305358648168).

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

1277323237112 is a wasteful number, since it uses less digits than its factorization.

1277323237112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16530983 (or 16530979 counting only the distinct ones).

The product of its digits is 148176, while the sum is 41.

The spelling of 1277323237112 in words is "one trillion, two hundred seventy-seven billion, three hundred twenty-three million, two hundred thirty-seven thousand, one hundred twelve".