2043212113 has 4 divisors (see below), whose sum is σ = 2098434100. Its totient is φ = 1987990128.

The previous prime is 2043212069. The next prime is 2043212189. The reversal of 2043212113 is 3112123402.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3112123402 = 2 ⋅1556061701.

It can be written as a sum of positive squares in 2 ways, for example, as 1141291089 + 901921024 = 33783^2 + 30032^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2043212113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2043212513) 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, 27610938 + ... + 27611011.

It is an arithmetic number, because the mean of its divisors is an integer number (524608525).

Almost surely, 2^2043212113 is an apocalyptic number.

It is an amenable number.

2043212113 is a deficient number, since it is larger than the sum of its proper divisors (55221987).

2043212113 is an equidigital number, since it uses as much as digits as its factorization.

2043212113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55221986.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2043212113 is about 45201.9038647710. The cubic root of 2043212113 is about 1268.9304473932.

Adding to 2043212113 its reverse (3112123402), we get a palindrome (5155335515).

The spelling of 2043212113 in words is "two billion, forty-three million, two hundred twelve thousand, one hundred thirteen".