2121113323 has 24 divisors (see below), whose sum is σ = 2509505712. Its totient is φ = 1787353344.

The previous prime is 2121113297. The next prime is 2121113329. The reversal of 2121113323 is 3233111212.

It is not a de Polignac number, because 2121113323 - 2¹³ = 2121105131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2121113323.

It is not an unprimeable number, because it can be changed into a prime (2121113329) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 716815 + ... + 719767.

It is an arithmetic number, because the mean of its divisors is an integer number (104562738).

Almost surely, 2^2121113323 is an apocalyptic number.

2121113323 is a deficient number, since it is larger than the sum of its proper divisors (388392389).

2121113323 is a wasteful number, since it uses less digits than its factorization.

2121113323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3211 (or 3204 counting only the distinct ones).

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

The square root of 2121113323 is about 46055.5460612509. The cubic root of 2121113323 is about 1284.8564941409.

Adding to 2121113323 its reverse (3233111212), we get a palindrome (5354224535).

The spelling of 2121113323 in words is "two billion, one hundred twenty-one million, one hundred thirteen thousand, three hundred twenty-three".