2123113213 has 16 divisors (see below), whose sum is σ = 2393459712. Its totient is φ = 1869840000.

The previous prime is 2123113211. The next prime is 2123113217. The reversal of 2123113213 is 3123113212.

It is a cyclic number.

It is not a de Polignac number, because 2123113213 - 2¹ = 2123113211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123113211) 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, 8488 + ... + 65713.

It is an arithmetic number, because the mean of its divisors is an integer number (149591232).

Almost surely, 2^2123113213 is an apocalyptic number.

It is an amenable number.

2123113213 is a deficient number, since it is larger than the sum of its proper divisors (270346499).

2123113213 is a wasteful number, since it uses less digits than its factorization.

2123113213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74316.

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

The square root of 2123113213 is about 46077.2526633262. The cubic root of 2123113213 is about 1285.2601759364.

Adding to 2123113213 its reverse (3123113212), we get a palindrome (5246226425).

Subtracting 2123113213 from its reverse (3123113212), we obtain a palindrome (999999999).

The spelling of 2123113213 in words is "two billion, one hundred twenty-three million, one hundred thirteen thousand, two hundred thirteen".