2121202030103 has 16 divisors (see below), whose sum is σ = 2298431226336. Its totient is φ = 1945989809280.

The previous prime is 2121202030091. The next prime is 2121202030117. The reversal of 2121202030103 is 3010302021212.

It is a cyclic number.

It is not a de Polignac number, because 2121202030103 - 2¹² = 2121202026007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121202030303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5913833 + ... + 6262253.

It is an arithmetic number, because the mean of its divisors is an integer number (143651951646).

Almost surely, 2^{2121202030103} is an apocalyptic number.

2121202030103 is a deficient number, since it is larger than the sum of its proper divisors (177229196233).

2121202030103 is a wasteful number, since it uses less digits than its factorization.

2121202030103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351314.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 2121202030103 its reverse (3010302021212), we get a palindrome (5131504051315).

The spelling of 2121202030103 in words is "two trillion, one hundred twenty-one billion, two hundred two million, thirty thousand, one hundred three".