1423400003 has 4 divisors (see below), whose sum is σ = 1425484728. Its totient is φ = 1421315280.

The previous prime is 1423399933. The next prime is 1423400009. The reversal of 1423400003 is 3000043241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3000043241 = 13 ⋅230772557.

It is a cyclic number.

It is not a de Polignac number, because 1423400003 - 2¹⁰ = 1423398979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1423400009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1041338 + ... + 1042703.

It is an arithmetic number, because the mean of its divisors is an integer number (356371182).

Almost surely, 2^1423400003 is an apocalyptic number.

1423400003 is a deficient number, since it is larger than the sum of its proper divisors (2084725).

1423400003 is an equidigital number, since it uses as much as digits as its factorization.

1423400003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2084724.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1423400003 is about 37727.9737462801. The cubic root of 1423400003 is about 1124.8872322852.

Adding to 1423400003 its reverse (3000043241), we get a palindrome (4423443244).

The spelling of 1423400003 in words is "one billion, four hundred twenty-three million, four hundred thousand, three".