213201029971 has 2 divisors, whose sum is σ = 213201029972. Its totient is φ = 213201029970.

The previous prime is 213201029959. The next prime is 213201030061. The reversal of 213201029971 is 179920102312.

213201029971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213201029971 - 2³⁷ = 75762076499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213201029971.

It is not a weakly prime, because it can be changed into another prime (213201029071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106600514985 + 106600514986.

It is an arithmetic number, because the mean of its divisors is an integer number (106600514986).

Almost surely, 2^213201029971 is an apocalyptic number.

213201029971 is a deficient number, since it is larger than the sum of its proper divisors (1).

213201029971 is an equidigital number, since it uses as much as digits as its factorization.

213201029971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 37.

The spelling of 213201029971 in words is "two hundred thirteen billion, two hundred one million, twenty-nine thousand, nine hundred seventy-one".