1242376223 has 16 divisors (see below), whose sum is σ = 1371427200. Its totient is φ = 1116067680.

The previous prime is 1242376169. The next prime is 1242376249. The reversal of 1242376223 is 3226732421.

It is a cyclic number.

It is not a de Polignac number, because 1242376223 - 2³⁰ = 168634399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1242376223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242376273) by changing a digit.

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, 529988 + ... + 532326.

It is an arithmetic number, because the mean of its divisors is an integer number (85714200).

Almost surely, 2^1242376223 is an apocalyptic number.

1242376223 is a deficient number, since it is larger than the sum of its proper divisors (129050977).

1242376223 is a wasteful number, since it uses less digits than its factorization.

1242376223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2902.

The product of its digits is 24192, while the sum is 32.

The square root of 1242376223 is about 35247.3576740158. The cubic root of 1242376223 is about 1075.0228869834.

The spelling of 1242376223 in words is "one billion, two hundred forty-two million, three hundred seventy-six thousand, two hundred twenty-three".