213315505643427 has 32 divisors (see below), whose sum is σ = 310465730814720. Its totient is φ = 129203543387520.

The previous prime is 213315505643407. The next prime is 213315505643431. The reversal of 213315505643427 is 724346505513312.

It is not a de Polignac number, because 213315505643427 - 2²³ = 213315497254819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213315505643427.

It is not an unprimeable number, because it can be changed into a prime (213315505643407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 573444849 + ... + 573816717.

It is an arithmetic number, because the mean of its divisors is an integer number (9702054087960).

Almost surely, 2^{213315505643427} is an apocalyptic number.

213315505643427 is a deficient number, since it is larger than the sum of its proper divisors (97150225171293).

213315505643427 is a wasteful number, since it uses less digits than its factorization.

213315505643427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382403.

The product of its (nonzero) digits is 9072000, while the sum is 51.

The spelling of 213315505643427 in words is "two hundred thirteen trillion, three hundred fifteen billion, five hundred five million, six hundred forty-three thousand, four hundred twenty-seven".