1212132143 has 2 divisors, whose sum is σ = 1212132144. Its totient is φ = 1212132142.

The previous prime is 1212132121. The next prime is 1212132149. The reversal of 1212132143 is 3412312121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212132143 - 2²⁰ = 1211083567 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212132149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606066071 + 606066072.

It is an arithmetic number, because the mean of its divisors is an integer number (606066072).

Almost surely, 2^1212132143 is an apocalyptic number.

1212132143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212132143 is an equidigital number, since it uses as much as digits as its factorization.

1212132143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 20.

The square root of 1212132143 is about 34815.6881735806. The cubic root of 1212132143 is about 1066.2277693140.

Adding to 1212132143 its reverse (3412312121), we get a palindrome (4624444264).

The spelling of 1212132143 in words is "one billion, two hundred twelve million, one hundred thirty-two thousand, one hundred forty-three".