1423430121 has 8 divisors (see below), whose sum is σ = 1898469664. Its totient is φ = 948672000.

The previous prime is 1423430117. The next prime is 1423430123. The reversal of 1423430121 is 1210343241.

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

It is not a de Polignac number, because 1423430121 - 2² = 1423430117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1423430123) 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, 58255 + ... + 78996.

It is an arithmetic number, because the mean of its divisors is an integer number (237308708).

Almost surely, 2^1423430121 is an apocalyptic number.

It is an amenable number.

1423430121 is a deficient number, since it is larger than the sum of its proper divisors (475039543).

1423430121 is a wasteful number, since it uses less digits than its factorization.

1423430121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140711.

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

The square root of 1423430121 is about 37728.3728909689. The cubic root of 1423430121 is about 1124.8951661325.

Adding to 1423430121 its reverse (1210343241), we get a palindrome (2633773362).

The spelling of 1423430121 in words is "one billion, four hundred twenty-three million, four hundred thirty thousand, one hundred twenty-one".