213012421223 has 16 divisors (see below), whose sum is σ = 248317939200. Its totient is φ = 178953087456.

The previous prime is 213012421183. The next prime is 213012421231. The reversal of 213012421223 is 322124210312.

213012421223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 213012421223 - 2²² = 213008226919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213012423223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1047836 + ... + 1234497.

It is an arithmetic number, because the mean of its divisors is an integer number (15519871200).

Almost surely, 2^213012421223 is an apocalyptic number.

213012421223 is a deficient number, since it is larger than the sum of its proper divisors (35305517977).

213012421223 is a wasteful number, since it uses less digits than its factorization.

213012421223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2282606.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 213012421223 its reverse (322124210312), we get a palindrome (535136631535).

The spelling of 213012421223 in words is "two hundred thirteen billion, twelve million, four hundred twenty-one thousand, two hundred twenty-three".