213213031231223 has 8 divisors (see below), whose sum is σ = 216471261882288. Its totient is φ = 209971214841024.

The previous prime is 213213031231177. The next prime is 213213031231231. The reversal of 213213031231223 is 322132130312312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213213031231223 - 2¹⁴ = 213213031214839 is a prime.

It is a super-3 number, since 3×213213031231223³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213213031231243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4103539040 + ... + 4103590997.

It is an arithmetic number, because the mean of its divisors is an integer number (27058907735286).

Almost surely, 2^{213213031231223} is an apocalyptic number.

213213031231223 is a deficient number, since it is larger than the sum of its proper divisors (3258230651065).

213213031231223 is an equidigital number, since it uses as much as digits as its factorization.

213213031231223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8207130433.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 213213031231223 its reverse (322132130312312), we get a palindrome (535345161543535).

The spelling of 213213031231223 in words is "two hundred thirteen trillion, two hundred thirteen billion, thirty-one million, two hundred thirty-one thousand, two hundred twenty-three".