213252550213 has 4 divisors (see below), whose sum is σ = 220131664768. Its totient is φ = 206373435660.

The previous prime is 213252550211. The next prime is 213252550229. The reversal of 213252550213 is 312055252312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213252550213 - 2¹ = 213252550211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 6879114523 = 213252550213 / (2 + 1 + 3 + 2 + 5 + 2 + 5 + 5 + 0 + 2 + 1 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213252550211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3439557231 + ... + 3439557292.

It is an arithmetic number, because the mean of its divisors is an integer number (55032916192).

Almost surely, 2^213252550213 is an apocalyptic number.

It is an amenable number.

213252550213 is a deficient number, since it is larger than the sum of its proper divisors (6879114555).

213252550213 is an equidigital number, since it uses as much as digits as its factorization.

213252550213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6879114554.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 213252550213 in words is "two hundred thirteen billion, two hundred fifty-two million, five hundred fifty thousand, two hundred thirteen".