2112303400203 has 4 divisors (see below), whose sum is σ = 2816404533608. Its totient is φ = 1408202266800.

The previous prime is 2112303400201. The next prime is 2112303400243. The reversal of 2112303400203 is 3020043032112.

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

It is not a de Polignac number, because 2112303400203 - 2¹ = 2112303400201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2112303400203.

It is not an unprimeable number, because it can be changed into a prime (2112303400201) 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, 352050566698 + ... + 352050566703.

It is an arithmetic number, because the mean of its divisors is an integer number (704101133402).

Almost surely, 2^{2112303400203} is an apocalyptic number.

2112303400203 is a deficient number, since it is larger than the sum of its proper divisors (704101133405).

2112303400203 is an equidigital number, since it uses as much as digits as its factorization.

2112303400203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704101133404.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 2112303400203 its reverse (3020043032112), we get a palindrome (5132346432315).

The spelling of 2112303400203 in words is "two trillion, one hundred twelve billion, three hundred three million, four hundred thousand, two hundred three".