212945871043 has 2 divisors, whose sum is σ = 212945871044. Its totient is φ = 212945871042.

The previous prime is 212945871031. The next prime is 212945871049. The reversal of 212945871043 is 340178549212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212945871043 - 2²¹ = 212943773891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212945870984 and 212945871002.

It is not a weakly prime, because it can be changed into another prime (212945871049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106472935521 + 106472935522.

It is an arithmetic number, because the mean of its divisors is an integer number (106472935522).

Almost surely, 2^212945871043 is an apocalyptic number.

212945871043 is a deficient number, since it is larger than the sum of its proper divisors (1).

212945871043 is an equidigital number, since it uses as much as digits as its factorization.

212945871043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 212945871043 in words is "two hundred twelve billion, nine hundred forty-five million, eight hundred seventy-one thousand, forty-three".