1232143142309 has 2 divisors, whose sum is σ = 1232143142310. Its totient is φ = 1232143142308.

The previous prime is 1232143142297. The next prime is 1232143142339. The reversal of 1232143142309 is 9032413412321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1213313265025 + 18829877284 = 1101505^2 + 137222^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232143142309 - 2³² = 1227848175013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1232143142339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616071571154 + 616071571155.

It is an arithmetic number, because the mean of its divisors is an integer number (616071571155).

Almost surely, 2^{1232143142309} is an apocalyptic number.

It is an amenable number.

1232143142309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232143142309 is an equidigital number, since it uses as much as digits as its factorization.

1232143142309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 1232143142309 in words is "one trillion, two hundred thirty-two billion, one hundred forty-three million, one hundred forty-two thousand, three hundred nine".