1212302143 has 8 divisors (see below), whose sum is σ = 1307124000. Its totient is φ = 1117704288.

The previous prime is 1212302137. The next prime is 1212302159. The reversal of 1212302143 is 3412032121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1212302143 - 2⁵ = 1212302111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1212302143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212302173) 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, 44668 + ... + 66481.

It is an arithmetic number, because the mean of its divisors is an integer number (163390500).

Almost surely, 2^1212302143 is an apocalyptic number.

1212302143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1212302143 is a deficient number, since it is larger than the sum of its proper divisors (94821857).

1212302143 is a wasteful number, since it uses less digits than its factorization.

1212302143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112001.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1212302143 is about 34818.1295161012. The cubic root of 1212302143 is about 1066.2776126826.

Adding to 1212302143 its reverse (3412032121), we get a palindrome (4624334264).

The spelling of 1212302143 in words is "one billion, two hundred twelve million, three hundred two thousand, one hundred forty-three".