1342402123 has 2 divisors, whose sum is σ = 1342402124. Its totient is φ = 1342402122.

The previous prime is 1342402121. The next prime is 1342402129. The reversal of 1342402123 is 3212042431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1342402123 - 2¹ = 1342402121 is a prime.

Together with 1342402121, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1342402094 and 1342402103.

It is not a weakly prime, because it can be changed into another prime (1342402121) 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 as a sum of consecutive naturals, namely, 671201061 + 671201062.

It is an arithmetic number, because the mean of its divisors is an integer number (671201062).

Almost surely, 2^1342402123 is an apocalyptic number.

1342402123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342402123 is an equidigital number, since it uses as much as digits as its factorization.

1342402123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1342402123 is about 36638.8062441996. The cubic root of 1342402123 is about 1103.1321537178.

Adding to 1342402123 its reverse (3212042431), we get a palindrome (4554444554).

The spelling of 1342402123 in words is "one billion, three hundred forty-two million, four hundred two thousand, one hundred twenty-three".