2121331102303 has 16 divisors (see below), whose sum is σ = 2483727269184. Its totient is φ = 1773779927040.

The previous prime is 2121331102291. The next prime is 2121331102309. The reversal of 2121331102303 is 3032011331212.

It is a cyclic number.

It is not a de Polignac number, because 2121331102303 - 2⁵ = 2121331102271 is a prime.

It is a super-2 number, since 2×2121331102303² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121331102309) 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, 3015951 + ... + 3652207.

It is an arithmetic number, because the mean of its divisors is an integer number (155232954324).

Almost surely, 2^{2121331102303} is an apocalyptic number.

2121331102303 is a deficient number, since it is larger than the sum of its proper divisors (362396166881).

2121331102303 is a wasteful number, since it uses less digits than its factorization.

2121331102303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647922.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 2121331102303 its reverse (3032011331212), we get a palindrome (5153342433515).

The spelling of 2121331102303 in words is "two trillion, one hundred twenty-one billion, three hundred thirty-one million, one hundred two thousand, three hundred three".