1280170012 has 24 divisors (see below), whose sum is σ = 2444892912. Its totient is φ = 581673600.

The previous prime is 1280169991. The next prime is 1280170039. The reversal of 1280170012 is 2100710821.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

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, 183712 + ... + 190552.

It is an arithmetic number, because the mean of its divisors is an integer number (101870538).

Almost surely, 2^1280170012 is an apocalyptic number.

It is an amenable number.

1280170012 is a deficient number, since it is larger than the sum of its proper divisors (1164722900).

1280170012 is a wasteful number, since it uses less digits than its factorization.

1280170012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11109 (or 11107 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 1280170012 is about 35779.4635510372. The cubic root of 1280170012 is about 1085.8151157148.

Adding to 1280170012 its reverse (2100710821), we get a palindrome (3380880833).

The spelling of 1280170012 in words is "one billion, two hundred eighty million, one hundred seventy thousand, twelve".