1312142233 has 2 divisors, whose sum is σ = 1312142234. Its totient is φ = 1312142232.

The previous prime is 1312142141. The next prime is 1312142281. The reversal of 1312142233 is 3322412131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1263589209 + 48553024 = 35547^2 + 6968^2 .

It is an emirp because it is prime and its reverse (3322412131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1312142233 - 2²¹ = 1310045081 is a prime.

It is not a weakly prime, because it can be changed into another prime (1312142833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656071116 + 656071117.

It is an arithmetic number, because the mean of its divisors is an integer number (656071117).

Almost surely, 2^1312142233 is an apocalyptic number.

It is an amenable number.

1312142233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312142233 is an equidigital number, since it uses as much as digits as its factorization.

1312142233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 22.

The square root of 1312142233 is about 36223.5038752465. The cubic root of 1312142233 is about 1094.7802935554.

Adding to 1312142233 its reverse (3322412131), we get a palindrome (4634554364).

The spelling of 1312142233 in words is "one billion, three hundred twelve million, one hundred forty-two thousand, two hundred thirty-three".