2021111202103 has 8 divisors (see below), whose sum is σ = 2309969409440. Its totient is φ = 1732285003680.

The previous prime is 2021111202091. The next prime is 2021111202107. The reversal of 2021111202103 is 3012021111202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2021111202103 - 2²¹ = 2021109104951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021111202107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7866768 + ... + 8119621.

It is an arithmetic number, because the mean of its divisors is an integer number (288746176180).

Almost surely, 2^{2021111202103} is an apocalyptic number.

2021111202103 is a deficient number, since it is larger than the sum of its proper divisors (288858207337).

2021111202103 is a wasteful number, since it uses less digits than its factorization.

2021111202103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16004457.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 2021111202103 its reverse (3012021111202), we get a palindrome (5033132313305).

Subtracting 2021111202103 from its reverse (3012021111202), we obtain a palindrome (990909909099).

The spelling of 2021111202103 in words is "two trillion, twenty-one billion, one hundred eleven million, two hundred two thousand, one hundred three".