1242123035 has 8 divisors (see below), whose sum is σ = 1538630016. Its totient is φ = 961643520.

The previous prime is 1242123023. The next prime is 1242123049. The reversal of 1242123035 is 5303212421.

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

It is not a de Polignac number, because 1242123035 - 2⁴ = 1242123019 is a prime.

It is a super-2 number, since 2×1242123035² = 3085739268155222450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1242123035.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4006694 + ... + 4007003.

It is an arithmetic number, because the mean of its divisors is an integer number (192328752).

Almost surely, 2^1242123035 is an apocalyptic number.

1242123035 is a deficient number, since it is larger than the sum of its proper divisors (296506981).

1242123035 is an equidigital number, since it uses as much as digits as its factorization.

1242123035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8013733.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1242123035 is about 35243.7659026387. The cubic root of 1242123035 is about 1074.9498545205.

Adding to 1242123035 its reverse (5303212421), we get a palindrome (6545335456).

The spelling of 1242123035 in words is "one billion, two hundred forty-two million, one hundred twenty-three thousand, thirty-five".