43212341987 has 2 divisors, whose sum is σ = 43212341988. Its totient is φ = 43212341986.

The previous prime is 43212341981. The next prime is 43212341993. The reversal of 43212341987 is 78914321234.

It is a balanced prime because it is at equal distance from previous prime (43212341981) and next prime (43212341993).

It is a cyclic number.

It is not a de Polignac number, because 43212341987 - 2⁶ = 43212341923 is a prime.

It is not a weakly prime, because it can be changed into another prime (43212341981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21606170993 + 21606170994.

It is an arithmetic number, because the mean of its divisors is an integer number (21606170994).

Almost surely, 2^43212341987 is an apocalyptic number.

43212341987 is a deficient number, since it is larger than the sum of its proper divisors (1).

43212341987 is an equidigital number, since it uses as much as digits as its factorization.

43212341987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 44.

The spelling of 43212341987 in words is "forty-three billion, two hundred twelve million, three hundred forty-one thousand, nine hundred eighty-seven".