2111412133 has 4 divisors (see below), whose sum is σ = 2112063660. Its totient is φ = 2110760608.

The previous prime is 2111412109. The next prime is 2111412143. The reversal of 2111412133 is 3312141112.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1781008804 + 330403329 = 42202^2 + 18177^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2111412133 is a prime.

It is a super-2 number, since 2×2111412133² = 8916122390759219378, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2111412133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111412103) 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, 320878 + ... + 327391.

It is an arithmetic number, because the mean of its divisors is an integer number (528015915).

Almost surely, 2^2111412133 is an apocalyptic number.

It is an amenable number.

2111412133 is a deficient number, since it is larger than the sum of its proper divisors (651527).

2111412133 is an equidigital number, since it uses as much as digits as its factorization.

2111412133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651526.

The product of its digits is 144, while the sum is 19.

The square root of 2111412133 is about 45950.1048203375. The cubic root of 2111412133 is about 1282.8946803215.

Adding to 2111412133 its reverse (3312141112), we get a palindrome (5423553245).

The spelling of 2111412133 in words is "two billion, one hundred eleven million, four hundred twelve thousand, one hundred thirty-three".