1247037038273 has 4 divisors (see below), whose sum is σ = 1342962964308. Its totient is φ = 1151111112240.

The previous prime is 1247037038267. The next prime is 1247037038287. The reversal of 1247037038273 is 3728307307421.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 445453460929 + 801583577344 = 667423^2 + 895312^2 .

It is a cyclic number.

It is not a de Polignac number, because 1247037038273 - 2²⁸ = 1246768602817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1247037038473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47962962998 + ... + 47962963023.

It is an arithmetic number, because the mean of its divisors is an integer number (335740741077).

Almost surely, 2^{1247037038273} is an apocalyptic number.

1247037038273 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1247037038273 is a deficient number, since it is larger than the sum of its proper divisors (95925926035).

1247037038273 is an equidigital number, since it uses as much as digits as its factorization.

1247037038273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95925926034.

The product of its (nonzero) digits is 1185408, while the sum is 47.

The spelling of 1247037038273 in words is "one trillion, two hundred forty-seven billion, thirty-seven million, thirty-eight thousand, two hundred seventy-three".