1242334143 has 12 divisors (see below), whose sum is σ = 1900040688. Its totient is φ = 779503680.

The previous prime is 1242334141. The next prime is 1242334147. The reversal of 1242334143 is 3414332421.

1242334143 is a `hidden beast` number, since 1 + 242 + 3 + 3 + 414 + 3 = 666.

It is not a de Polignac number, because 1242334143 - 2¹ = 1242334141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242334141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4059763 + ... + 4060068.

It is an arithmetic number, because the mean of its divisors is an integer number (158336724).

Almost surely, 2^1242334143 is an apocalyptic number.

1242334143 is a deficient number, since it is larger than the sum of its proper divisors (657706545).

1242334143 is a wasteful number, since it uses less digits than its factorization.

1242334143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8119854 (or 8119851 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 1242334143 is about 35246.7607447833. The cubic root of 1242334143 is about 1075.0107496311.

Adding to 1242334143 its reverse (3414332421), we get a palindrome (4656666564).

The spelling of 1242334143 in words is "one billion, two hundred forty-two million, three hundred thirty-four thousand, one hundred forty-three".