1273030013 has 8 divisors (see below), whose sum is σ = 1344385728. Its totient is φ = 1203008224.

The previous prime is 1273029943. The next prime is 1273030027. The reversal of 1273030013 is 3100303721.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1273030013 - 2⁸ = 1273029757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1273030043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331520 + ... + 335337.

It is an arithmetic number, because the mean of its divisors is an integer number (168048216).

Almost surely, 2^1273030013 is an apocalyptic number.

It is an amenable number.

1273030013 is a deficient number, since it is larger than the sum of its proper divisors (71355715).

1273030013 is an equidigital number, since it uses as much as digits as its factorization.

1273030013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666963.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 1273030013 is about 35679.5461434139. The cubic root of 1273030013 is about 1083.7926820042.

Adding to 1273030013 its reverse (3100303721), we get a palindrome (4373333734).

The spelling of 1273030013 in words is "one billion, two hundred seventy-three million, thirty thousand, thirteen".