2001232100003 has 4 divisors (see below), whose sum is σ = 2006376655920. Its totient is φ = 1996087544088.

The previous prime is 2001232099949. The next prime is 2001232100009. The reversal of 2001232100003 is 3000012321002.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2001232100003 - 2³⁴ = 1984052230819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001232100009) 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, 2572277375 + ... + 2572278152.

It is an arithmetic number, because the mean of its divisors is an integer number (501594163980).

Almost surely, 2^{2001232100003} is an apocalyptic number.

2001232100003 is a deficient number, since it is larger than the sum of its proper divisors (5144555917).

2001232100003 is an equidigital number, since it uses as much as digits as its factorization.

2001232100003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5144555916.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 2001232100003 its reverse (3000012321002), we get a palindrome (5001244421005).

The spelling of 2001232100003 in words is "two trillion, one billion, two hundred thirty-two million, one hundred thousand, three".