1243342212 has 48 divisors (see below), whose sum is σ = 3339463680. Its totient is φ = 352681632.

The previous prime is 1243342207. The next prime is 1243342213. The reversal of 1243342212 is 2122433421.

It is a happy number.

It is a super-2 number, since 2×1243342212² = 3091799712282105888, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1243342213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41568 + ... + 64919.

It is an arithmetic number, because the mean of its divisors is an integer number (69572160).

Almost surely, 2^1243342212 is an apocalyptic number.

1243342212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1243342212 is an abundant number, since it is smaller than the sum of its proper divisors (2096121468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1243342212 is a wasteful number, since it uses less digits than its factorization.

1243342212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106640 (or 106638 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 1243342212 is about 35261.0580102186. The cubic root of 1243342212 is about 1075.3014368662.

Adding to 1243342212 its reverse (2122433421), we get a palindrome (3365775633).

It can be divided in two parts, 12433 and 42212, that added together give a palindrome (54645).

The spelling of 1243342212 in words is "one billion, two hundred forty-three million, three hundred forty-two thousand, two hundred twelve".