2111012121203 has 4 divisors (see below), whose sum is σ = 2111607279000. Its totient is φ = 2110416963408.

The previous prime is 2111012121191. The next prime is 2111012121241. The reversal of 2111012121203 is 3021212101112.

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 2111012121203 - 2⁴ = 2111012121187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111012121103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297573578 + ... + 297580671.

It is an arithmetic number, because the mean of its divisors is an integer number (527901819750).

Almost surely, 2^{2111012121203} is an apocalyptic number.

2111012121203 is a deficient number, since it is larger than the sum of its proper divisors (595157797).

2111012121203 is an equidigital number, since it uses as much as digits as its factorization.

2111012121203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595157796.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 2111012121203 its reverse (3021212101112), we get a palindrome (5132224222315).

The spelling of 2111012121203 in words is "two trillion, one hundred eleven billion, twelve million, one hundred twenty-one thousand, two hundred three".