12120001203 has 4 divisors (see below), whose sum is σ = 16160001608. Its totient is φ = 8080000800.

The previous prime is 12120001121. The next prime is 12120001261. The reversal of 12120001203 is 30210002121.

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

It is not a de Polignac number, because 12120001203 - 2⁸ = 12120000947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120001703) 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, 2020000198 + ... + 2020000203.

It is an arithmetic number, because the mean of its divisors is an integer number (4040000402).

Almost surely, 2^12120001203 is an apocalyptic number.

12120001203 is a deficient number, since it is larger than the sum of its proper divisors (4040000405).

12120001203 is an equidigital number, since it uses as much as digits as its factorization.

12120001203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4040000404.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 12120001203 its reverse (30210002121), we get a palindrome (42330003324).

The spelling of 12120001203 in words is "twelve billion, one hundred twenty million, one thousand, two hundred three".