1423123100403 has 4 divisors (see below), whose sum is σ = 1897497467208. Its totient is φ = 948748733600.

The previous prime is 1423123100387. The next prime is 1423123100417. The reversal of 1423123100403 is 3040013213241.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1423123100403 - 2⁴ = 1423123100387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1423123100603) 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, 237187183398 + ... + 237187183403.

It is an arithmetic number, because the mean of its divisors is an integer number (474374366802).

Almost surely, 2^{1423123100403} is an apocalyptic number.

1423123100403 is a deficient number, since it is larger than the sum of its proper divisors (474374366805).

1423123100403 is an equidigital number, since it uses as much as digits as its factorization.

1423123100403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474374366804.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1423123100403 its reverse (3040013213241), we get a palindrome (4463136313644).

The spelling of 1423123100403 in words is "one trillion, four hundred twenty-three billion, one hundred twenty-three million, one hundred thousand, four hundred three".