2121113131303 has 4 divisors (see below), whose sum is σ = 2121312288808. Its totient is φ = 2120913973800.

The previous prime is 2121113131301. The next prime is 2121113131307. The reversal of 2121113131303 is 3031313111212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2121113131303 - 2¹ = 2121113131301 is a prime.

It is a super-3 number, since 3×2121113131303³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121113131301) 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, 99562776 + ... + 99584077.

It is an arithmetic number, because the mean of its divisors is an integer number (530328072202).

Almost surely, 2^{2121113131303} is an apocalyptic number.

2121113131303 is a deficient number, since it is larger than the sum of its proper divisors (199157505).

2121113131303 is a wasteful number, since it uses less digits than its factorization.

2121113131303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199157504.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 2121113131303 its reverse (3031313111212), we get a palindrome (5152426242515).

The spelling of 2121113131303 in words is "two trillion, one hundred twenty-one billion, one hundred thirteen million, one hundred thirty-one thousand, three hundred three".