213231352340205 has 48 divisors (see below), whose sum is σ = 375120646852224. Its totient is φ = 112025067327360.

The previous prime is 213231352340203. The next prime is 213231352340263. The reversal of 213231352340205 is 502043253132312.

213231352340205 is a `hidden beast` number, since 2 + 1 + 32 + 31 + 3 + 52 + 340 + 205 = 666.

It is not a de Polignac number, because 213231352340205 - 2¹ = 213231352340203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213231352340205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213231352340203) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 478984632 + ... + 479429598.

It is an arithmetic number, because the mean of its divisors is an integer number (7815013476088).

Almost surely, 2^{213231352340205} is an apocalyptic number.

It is an amenable number.

213231352340205 is a deficient number, since it is larger than the sum of its proper divisors (161889294512019).

213231352340205 is a wasteful number, since it uses less digits than its factorization.

213231352340205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603986 (or 603983 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The spelling of 213231352340205 in words is "two hundred thirteen trillion, two hundred thirty-one billion, three hundred fifty-two million, three hundred forty thousand, two hundred five".