1278013241120 has 144 divisors (see below), whose sum is σ = 3831550345728. Its totient is φ = 398341762560.

The previous prime is 1278013241077. The next prime is 1278013241123. The reversal of 1278013241120 is 211423108721.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (1278013241123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7323392 + ... + 7495871.

It is an arithmetic number, because the mean of its divisors is an integer number (26607988512).

Almost surely, 2^{1278013241120} is an apocalyptic number.

1278013241120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1278013241120 is an abundant number, since it is smaller than the sum of its proper divisors (2553537104608).

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

1278013241120 is a wasteful number, since it uses less digits than its factorization.

1278013241120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14819303 (or 14819288 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

Adding to 1278013241120 its reverse (211423108721), we get a palindrome (1489436349841).

The spelling of 1278013241120 in words is "one trillion, two hundred seventy-eight billion, thirteen million, two hundred forty-one thousand, one hundred twenty".