1273394613320 has 64 divisors (see below), whose sum is σ = 2964253579200. Its totient is φ = 491741044480.

The previous prime is 1273394613289. The next prime is 1273394613431. The reversal of 1273394613320 is 233164933721.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 11791007 + ... + 11898513.

It is an arithmetic number, because the mean of its divisors is an integer number (46316462175).

Almost surely, 2^{1273394613320} is an apocalyptic number.

1273394613320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1273394613320 is an abundant number, since it is smaller than the sum of its proper divisors (1690858965880).

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

1273394613320 is a wasteful number, since it uses less digits than its factorization.

1273394613320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117758 (or 117754 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 44.

The spelling of 1273394613320 in words is "one trillion, two hundred seventy-three billion, three hundred ninety-four million, six hundred thirteen thousand, three hundred twenty".