432121003 has 4 divisors (see below), whose sum is σ = 432438480. Its totient is φ = 431803528.

The previous prime is 432120979. The next prime is 432121021. The reversal of 432121003 is 300121234.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-432121003 is a prime.

It is a super-2 number, since 2×432121003² = 373457122467452018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (432121093) 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, 156688 + ... + 159421.

It is an arithmetic number, because the mean of its divisors is an integer number (108109620).

Almost surely, 2^432121003 is an apocalyptic number.

432121003 is a deficient number, since it is larger than the sum of its proper divisors (317477).

432121003 is a wasteful number, since it uses less digits than its factorization.

432121003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317476.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 432121003 is about 20787.5203667970. The cubic root of 432121003 is about 756.0232040086.

Adding to 432121003 its reverse (300121234), we get a palindrome (732242237).

The spelling of 432121003 in words is "four hundred thirty-two million, one hundred twenty-one thousand, three".