1243442114 has 4 divisors (see below), whose sum is σ = 1865163174. Its totient is φ = 621721056.

The previous prime is 1243442113. The next prime is 1243442129. The reversal of 1243442114 is 4112443421.

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

It can be written as a sum of positive squares in only one way, i.e., 963047089 + 280395025 = 31033^2 + 16745^2 .

It is a super-2 number, since 2×1243442114² = 3092296581737577992, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1243442113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310860527 + ... + 310860530.

Almost surely, 2^1243442114 is an apocalyptic number.

1243442114 is a deficient number, since it is larger than the sum of its proper divisors (621721060).

1243442114 is an equidigital number, since it uses as much as digits as its factorization.

1243442114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621721059.

The product of its digits is 3072, while the sum is 26.

The square root of 1243442114 is about 35262.4745870167. The cubic root of 1243442114 is about 1075.3302360941.

Adding to 1243442114 its reverse (4112443421), we get a palindrome (5355885535).

The spelling of 1243442114 in words is "one billion, two hundred forty-three million, four hundred forty-two thousand, one hundred fourteen".