1423200121 has 16 divisors (see below), whose sum is σ = 1635096960. Its totient is φ = 1213470720.

The previous prime is 1423200071. The next prime is 1423200127. The reversal of 1423200121 is 1210023241.

It is not a de Polignac number, because 1423200121 - 2²⁷ = 1288982393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1423200095 and 1423200104.

It is not an unprimeable number, because it can be changed into a prime (1423200127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1879675 + ... + 1880431.

It is an arithmetic number, because the mean of its divisors is an integer number (102193560).

Almost surely, 2^1423200121 is an apocalyptic number.

It is an amenable number.

1423200121 is a deficient number, since it is larger than the sum of its proper divisors (211896839).

1423200121 is an equidigital number, since it uses as much as digits as its factorization.

1423200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1824.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1423200121 is about 37725.3246639442. The cubic root of 1423200121 is about 1124.8345754460.

Adding to 1423200121 its reverse (1210023241), we get a palindrome (2633223362).

The spelling of 1423200121 in words is "one billion, four hundred twenty-three million, two hundred thousand, one hundred twenty-one".