1243211234 has 8 divisors (see below), whose sum is σ = 1870700508. Its totient is φ = 619644400.

The previous prime is 1243211231. The next prime is 1243211239. The reversal of 1243211234 is 4321123421.

It can be written as a sum of positive squares in 2 ways, for example, as 970135609 + 273075625 = 31147^2 + 16525^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1243211231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 979817 + ... + 981084.

Almost surely, 2^1243211234 is an apocalyptic number.

1243211234 is a deficient number, since it is larger than the sum of its proper divisors (627489274).

1243211234 is a wasteful number, since it uses less digits than its factorization.

1243211234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1961220.

The product of its digits is 1152, while the sum is 23.

The square root of 1243211234 is about 35259.2006999592. The cubic root of 1243211234 is about 1075.2636768738.

Adding to 1243211234 its reverse (4321123421), we get a palindrome (5564334655).

The spelling of 1243211234 in words is "one billion, two hundred forty-three million, two hundred eleven thousand, two hundred thirty-four".