1242274713073 has 4 divisors (see below), whose sum is σ = 1242276947620. Its totient is φ = 1242272478528.

The previous prime is 1242274713007. The next prime is 1242274713077. The reversal of 1242274713073 is 3703174722421.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1146030198784 + 96244514289 = 1070528^2 + 310233^2 .

It is a cyclic number.

It is not a de Polignac number, because 1242274713073 - 2²⁹ = 1241737842161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1242274713077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 442213 + ... + 1637101.

It is an arithmetic number, because the mean of its divisors is an integer number (310569236905).

Almost surely, 2^{1242274713073} is an apocalyptic number.

It is an amenable number.

1242274713073 is a deficient number, since it is larger than the sum of its proper divisors (2234547).

1242274713073 is a wasteful number, since it uses less digits than its factorization.

1242274713073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2234546.

The product of its (nonzero) digits is 395136, while the sum is 43.

The spelling of 1242274713073 in words is "one trillion, two hundred forty-two billion, two hundred seventy-four million, seven hundred thirteen thousand, seventy-three".