43212221002123 has 2 divisors, whose sum is σ = 43212221002124. Its totient is φ = 43212221002122.

The previous prime is 43212221002079. The next prime is 43212221002141. The reversal of 43212221002123 is 32120012221234.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43212221002123 - 2⁹ = 43212221001611 is a prime.

It is not a weakly prime, because it can be changed into another prime (43212221002723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21606110501061 + 21606110501062.

It is an arithmetic number, because the mean of its divisors is an integer number (21606110501062).

Almost surely, 2^{43212221002123} is an apocalyptic number.

43212221002123 is a deficient number, since it is larger than the sum of its proper divisors (1).

43212221002123 is an equidigital number, since it uses as much as digits as its factorization.

43212221002123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 43212221002123 its reverse (32120012221234), we get a palindrome (75332233223357).

The spelling of 43212221002123 in words is "forty-three trillion, two hundred twelve billion, two hundred twenty-one million, two thousand, one hundred twenty-three".