212113310223 has 4 divisors (see below), whose sum is σ = 282817746968. Its totient is φ = 141408873480.

The previous prime is 212113310153. The next prime is 212113310243. The reversal of 212113310223 is 322013311212.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 212113310223 - 2¹² = 212113306127 is a prime.

It is a super-3 number, since 3×212113310223³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212113310223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212113310243) 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, 35352218368 + ... + 35352218373.

It is an arithmetic number, because the mean of its divisors is an integer number (70704436742).

Almost surely, 2^212113310223 is an apocalyptic number.

212113310223 is a deficient number, since it is larger than the sum of its proper divisors (70704436745).

212113310223 is an equidigital number, since it uses as much as digits as its factorization.

212113310223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70704436744.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 212113310223 its reverse (322013311212), we get a palindrome (534126621435).

The spelling of 212113310223 in words is "two hundred twelve billion, one hundred thirteen million, three hundred ten thousand, two hundred twenty-three".