1213174423 has 2 divisors, whose sum is σ = 1213174424. Its totient is φ = 1213174422.

The previous prime is 1213174421. The next prime is 1213174433. The reversal of 1213174423 is 3244713121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1213174423 - 2¹ = 1213174421 is a prime.

Together with 1213174421, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1213174391 and 1213174400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213174421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606587211 + 606587212.

It is an arithmetic number, because the mean of its divisors is an integer number (606587212).

Almost surely, 2^1213174423 is an apocalyptic number.

1213174423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213174423 is an equidigital number, since it uses as much as digits as its factorization.

1213174423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 28.

The square root of 1213174423 is about 34830.6534965969. The cubic root of 1213174423 is about 1066.5332886723.

Adding to 1213174423 its reverse (3244713121), we get a palindrome (4457887544).

The spelling of 1213174423 in words is "one billion, two hundred thirteen million, one hundred seventy-four thousand, four hundred twenty-three".