1423140123 has 8 divisors (see below), whose sum is σ = 1909162048. Its totient is φ = 942939144.

The previous prime is 1423140031. The next prime is 1423140137. The reversal of 1423140123 is 3210413241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1423140123 - 2⁹ = 1423139611 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1423140123.

It is not an unprimeable number, because it can be changed into a prime (1423140143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1454665 + ... + 1455642.

It is an arithmetic number, because the mean of its divisors is an integer number (238645256).

Almost surely, 2^1423140123 is an apocalyptic number.

1423140123 is a deficient number, since it is larger than the sum of its proper divisors (486021925).

1423140123 is a wasteful number, since it uses less digits than its factorization.

1423140123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2910473.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1423140123 is about 37724.5294602862. The cubic root of 1423140123 is about 1124.8187686333.

Adding to 1423140123 its reverse (3210413241), we get a palindrome (4633553364).

The spelling of 1423140123 in words is "one billion, four hundred twenty-three million, one hundred forty thousand, one hundred twenty-three".