1242114123 has 4 divisors (see below), whose sum is σ = 1656152168. Its totient is φ = 828076080.

The previous prime is 1242114121. The next prime is 1242114127. The reversal of 1242114123 is 3214112421.

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

It is not a de Polignac number, because 1242114123 - 2¹ = 1242114121 is a prime.

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 1242114123.

It is not an unprimeable number, because it can be changed into a prime (1242114121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207019018 + ... + 207019023.

It is an arithmetic number, because the mean of its divisors is an integer number (414038042).

Almost surely, 2^1242114123 is an apocalyptic number.

1242114123 is a deficient number, since it is larger than the sum of its proper divisors (414038045).

1242114123 is an equidigital number, since it uses as much as digits as its factorization.

1242114123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414038044.

The product of its digits is 384, while the sum is 21.

The square root of 1242114123 is about 35243.6394687041. The cubic root of 1242114123 is about 1074.9472836597.

Adding to 1242114123 its reverse (3214112421), we get a palindrome (4456226544).

The spelling of 1242114123 in words is "one billion, two hundred forty-two million, one hundred fourteen thousand, one hundred twenty-three".