2021210133103 has 4 divisors (see below), whose sum is σ = 2309954437840. Its totient is φ = 1732465828368.

The previous prime is 2021210133037. The next prime is 2021210133109. The reversal of 2021210133103 is 3013310121202.

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-2021210133103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021210133109) 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, 144372152358 + ... + 144372152371.

It is an arithmetic number, because the mean of its divisors is an integer number (577488609460).

Almost surely, 2^{2021210133103} is an apocalyptic number.

2021210133103 is a deficient number, since it is larger than the sum of its proper divisors (288744304737).

2021210133103 is an equidigital number, since it uses as much as digits as its factorization.

2021210133103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288744304736.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 2021210133103 its reverse (3013310121202), we get a palindrome (5034520254305).

The spelling of 2021210133103 in words is "two trillion, twenty-one billion, two hundred ten million, one hundred thirty-three thousand, one hundred three".