1423021123 has 2 divisors, whose sum is σ = 1423021124. Its totient is φ = 1423021122.

The previous prime is 1423021099. The next prime is 1423021163. The reversal of 1423021123 is 3211203241.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1423021123 - 2⁹ = 1423020611 is a prime.

It is a super-2 number, since 2×1423021123² = 4049978233008362258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1423021123.

It is not a weakly prime, because it can be changed into another prime (1423021163) 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, 711510561 + 711510562.

It is an arithmetic number, because the mean of its divisors is an integer number (711510562).

Almost surely, 2^1423021123 is an apocalyptic number.

1423021123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423021123 is an equidigital number, since it uses as much as digits as its factorization.

1423021123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1423021123 is about 37722.9522041953. The cubic root of 1423021123 is about 1124.7874160953.

Adding to 1423021123 its reverse (3211203241), we get a palindrome (4634224364).

It can be divided in two parts, 14230 and 21123, that added together give a palindrome (35353).

The spelling of 1423021123 in words is "one billion, four hundred twenty-three million, twenty-one thousand, one hundred twenty-three".