212030112443 has 12 divisors (see below), whose sum is σ = 223801621680. Its totient is φ = 200842317456.

The previous prime is 212030112391. The next prime is 212030112479. The reversal of 212030112443 is 344211030212.

It is not a de Polignac number, because 212030112443 - 2²⁰ = 212029063867 is a prime.

It is a super-4 number, since 4×212030112443⁴ (a number of 46 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212030115443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1891208 + ... + 2000181.

It is an arithmetic number, because the mean of its divisors is an integer number (18650135140).

Almost surely, 2^212030112443 is an apocalyptic number.

212030112443 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

212030112443 is a deficient number, since it is larger than the sum of its proper divisors (11771509237).

212030112443 is a wasteful number, since it uses less digits than its factorization.

212030112443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3891538 (or 3891515 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 212030112443 its reverse (344211030212), we get a palindrome (556241142655).

The spelling of 212030112443 in words is "two hundred twelve billion, thirty million, one hundred twelve thousand, four hundred forty-three".