1212242343 has 16 divisors (see below), whose sum is σ = 1741498080. Its totient is φ = 745634304.

The previous prime is 1212242287. The next prime is 1212242399. The reversal of 1212242343 is 3432422121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1212242287) and next prime (1212242399).

It is not a de Polignac number, because 1212242343 - 2¹⁰ = 1212241319 is a prime.

It is a super-3 number, since 3×1212242343³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212242243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90163 + ... + 102731.

It is an arithmetic number, because the mean of its divisors is an integer number (108843630).

Almost surely, 2^1212242343 is an apocalyptic number.

1212242343 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1212242343 is a deficient number, since it is larger than the sum of its proper divisors (529255737).

1212242343 is a wasteful number, since it uses less digits than its factorization.

1212242343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15058.

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

The square root of 1212242343 is about 34817.2707574847. The cubic root of 1212242343 is about 1066.2600800760.

Adding to 1212242343 its reverse (3432422121), we get a palindrome (4644664464).

The spelling of 1212242343 in words is "one billion, two hundred twelve million, two hundred forty-two thousand, three hundred forty-three".