2111002010203 has 4 divisors (see below), whose sum is σ = 2111155206048. Its totient is φ = 2110848814360.

The previous prime is 2111002010167. The next prime is 2111002010233. The reversal of 2111002010203 is 3020102001112.

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-2111002010203 is a prime.

It is a super-2 number, since 2×2111002010203² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111002010233) 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, 76577251 + ... + 76604812.

It is an arithmetic number, because the mean of its divisors is an integer number (527788801512).

Almost surely, 2^{2111002010203} is an apocalyptic number.

2111002010203 is a deficient number, since it is larger than the sum of its proper divisors (153195845).

2111002010203 is a wasteful number, since it uses less digits than its factorization.

2111002010203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153195844.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 2111002010203 its reverse (3020102001112), we get a palindrome (5131104011315).

Subtracting 2111002010203 from its reverse (3020102001112), we obtain a palindrome (909099990909).

The spelling of 2111002010203 in words is "two trillion, one hundred eleven billion, two million, ten thousand, two hundred three".