1212242043 has 8 divisors (see below), whose sum is σ = 1627027456. Its totient is φ = 802809000.

The previous prime is 1212242041. The next prime is 1212242093. The reversal of 1212242043 is 3402422121.

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

It is not a de Polignac number, because 1212242043 - 2¹ = 1212242041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212242041) 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 7 ways as a sum of consecutive naturals, for example, 1337563 + ... + 1338468.

It is an arithmetic number, because the mean of its divisors is an integer number (203378432).

Almost surely, 2^1212242043 is an apocalyptic number.

1212242043 is a deficient number, since it is larger than the sum of its proper divisors (414785413).

1212242043 is a wasteful number, since it uses less digits than its factorization.

1212242043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2676185.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1212242043 is about 34817.2664492777. The cubic root of 1212242043 is about 1066.2599921183.

Adding to 1212242043 its reverse (3402422121), we get a palindrome (4614664164).

The spelling of 1212242043 in words is "one billion, two hundred twelve million, two hundred forty-two thousand, forty-three".