213885970723 has 2 divisors, whose sum is σ = 213885970724. Its totient is φ = 213885970722.

The previous prime is 213885970721. The next prime is 213885970741. The reversal of 213885970723 is 327079588312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213885970723 - 2¹ = 213885970721 is a prime.

Together with 213885970721, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (213885970721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106942985361 + 106942985362.

It is an arithmetic number, because the mean of its divisors is an integer number (106942985362).

Almost surely, 2^213885970723 is an apocalyptic number.

213885970723 is a deficient number, since it is larger than the sum of its proper divisors (1).

213885970723 is an equidigital number, since it uses as much as digits as its factorization.

213885970723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 213885970723 in words is "two hundred thirteen billion, eight hundred eighty-five million, nine hundred seventy thousand, seven hundred twenty-three".