423132121 has 4 divisors (see below), whose sum is σ = 423242752. Its totient is φ = 423021492.

The previous prime is 423132107. The next prime is 423132131. The reversal of 423132121 is 121231324.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 423132121 - 2⁵ = 423132089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423132131) 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 3 ways as a sum of consecutive naturals, for example, 49365 + ... + 57298.

It is an arithmetic number, because the mean of its divisors is an integer number (105810688).

Almost surely, 2^423132121 is an apocalyptic number.

It is an amenable number.

423132121 is a deficient number, since it is larger than the sum of its proper divisors (110631).

423132121 is a wasteful number, since it uses less digits than its factorization.

423132121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110630.

The product of its digits is 288, while the sum is 19.

The square root of 423132121 is about 20570.1755218569. The cubic root of 423132121 is about 750.7442218601.

Adding to 423132121 its reverse (121231324), we get a palindrome (544363445).

The spelling of 423132121 in words is "four hundred twenty-three million, one hundred thirty-two thousand, one hundred twenty-one".