1273141320 has 64 divisors (see below), whose sum is σ = 4166648640. Its totient is φ = 308640000.

The previous prime is 1273141279. The next prime is 1273141343. The reversal of 1273141320 is 231413721.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 480931 + ... + 483570.

It is an arithmetic number, because the mean of its divisors is an integer number (65103885).

Almost surely, 2^1273141320 is an apocalyptic number.

1273141320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1273141320 is an abundant number, since it is smaller than the sum of its proper divisors (2893507320).

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

1273141320 is a wasteful number, since it uses less digits than its factorization.

1273141320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964526 (or 964522 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 1273141320 is about 35681.1059245646. The cubic root of 1273141320 is about 1083.8242681138.

The spelling of 1273141320 in words is "one billion, two hundred seventy-three million, one hundred forty-one thousand, three hundred twenty".