1242453211 has 32 divisors (see below), whose sum is σ = 1381017600. Its totient is φ = 1113154560.

The previous prime is 1242453203. The next prime is 1242453227. The reversal of 1242453211 is 1123542421.

It is not a de Polignac number, because 1242453211 - 2³ = 1242453203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1242453271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5198430 + ... + 5198668.

It is an arithmetic number, because the mean of its divisors is an integer number (43156800).

Almost surely, 2^1242453211 is an apocalyptic number.

1242453211 is a deficient number, since it is larger than the sum of its proper divisors (138564389).

1242453211 is a wasteful number, since it uses less digits than its factorization.

1242453211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459.

The product of its digits is 1920, while the sum is 25.

The square root of 1242453211 is about 35248.4497673302. The cubic root of 1242453211 is about 1075.0450923216.

Adding to 1242453211 its reverse (1123542421), we get a palindrome (2365995632).

The spelling of 1242453211 in words is "one billion, two hundred forty-two million, four hundred fifty-three thousand, two hundred eleven".