1242312603 has 16 divisors (see below), whose sum is σ = 1907957760. Its totient is φ = 704301696.

The previous prime is 1242312529. The next prime is 1242312607. The reversal of 1242312603 is 3062132421.

It is not a de Polignac number, because 1242312603 - 2¹³ = 1242304411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1242312607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230238 + ... + 235571.

It is an arithmetic number, because the mean of its divisors is an integer number (119247360).

Almost surely, 2^1242312603 is an apocalyptic number.

1242312603 is a deficient number, since it is larger than the sum of its proper divisors (665645157).

1242312603 is a wasteful number, since it uses less digits than its factorization.

1242312603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465946.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 1242312603 is about 35246.4551834649. The cubic root of 1242312603 is about 1075.0045366313.

The spelling of 1242312603 in words is "one billion, two hundred forty-two million, three hundred twelve thousand, six hundred three".