201432121003 has 4 divisors (see below), whose sum is σ = 208378056240. Its totient is φ = 194486185768.

The previous prime is 201432120997. The next prime is 201432121013. The reversal of 201432121003 is 300121234102.

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-201432121003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201432121013) 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, 3472967575 + ... + 3472967632.

It is an arithmetic number, because the mean of its divisors is an integer number (52094514060).

Almost surely, 2^201432121003 is an apocalyptic number.

201432121003 is a deficient number, since it is larger than the sum of its proper divisors (6945935237).

201432121003 is an equidigital number, since it uses as much as digits as its factorization.

201432121003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6945935236.

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

Adding to 201432121003 its reverse (300121234102), we get a palindrome (501553355105).

The spelling of 201432121003 in words is "two hundred one billion, four hundred thirty-two million, one hundred twenty-one thousand, three".