1288117112 has 16 divisors (see below), whose sum is σ = 2480496360. Its totient is φ = 626651424.

The previous prime is 1288117111. The next prime is 1288117147. The reversal of 1288117112 is 2117118821.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1288117111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2175578 + ... + 2176169.

Almost surely, 2^1288117112 is an apocalyptic number.

It is an amenable number.

1288117112 is a deficient number, since it is larger than the sum of its proper divisors (1192379248).

1288117112 is a wasteful number, since it uses less digits than its factorization.

1288117112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4351790 (or 4351786 counting only the distinct ones).

The product of its digits is 1792, while the sum is 32.

The square root of 1288117112 is about 35890.3484519167. The cubic root of 1288117112 is about 1088.0573404576.

The spelling of 1288117112 in words is "one billion, two hundred eighty-eight million, one hundred seventeen thousand, one hundred twelve".