2113120211 has 4 divisors (see below), whose sum is σ = 2113250424. Its totient is φ = 2112990000.

The previous prime is 2113120199. The next prime is 2113120231. The reversal of 2113120211 is 1120213112.

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 2113120211 - 2¹⁴ = 2113103827 is a prime.

It is a super-2 number, since 2×2113120211² = 8930554052273369042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2113120231) 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, 36605 + ... + 74606.

It is an arithmetic number, because the mean of its divisors is an integer number (528312606).

Almost surely, 2^2113120211 is an apocalyptic number.

2113120211 is a deficient number, since it is larger than the sum of its proper divisors (130213).

2113120211 is a wasteful number, since it uses less digits than its factorization.

2113120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130212.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 2113120211 is about 45968.6872881965. The cubic root of 2113120211 is about 1283.2405299882.

Adding to 2113120211 its reverse (1120213112), we get a palindrome (3233333323).

The spelling of 2113120211 in words is "two billion, one hundred thirteen million, one hundred twenty thousand, two hundred eleven".