213301223023231 has 16 divisors (see below), whose sum is σ = 245529524862720. Its totient is φ = 181512127293120.

The previous prime is 213301223023171. The next prime is 213301223023237. The reversal of 213301223023231 is 132320322103312.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 213301223023231 - 2²³ = 213301214634623 is a prime.

It is a super-2 number, since 2×213301223023231² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 213301223023231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213301223023237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82839060 + ... + 85375126.

It is an arithmetic number, because the mean of its divisors is an integer number (15345595303920).

Almost surely, 2^{213301223023231} is an apocalyptic number.

213301223023231 is a deficient number, since it is larger than the sum of its proper divisors (32228301839489).

213301223023231 is a wasteful number, since it uses less digits than its factorization.

213301223023231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2622654.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 213301223023231 its reverse (132320322103312), we get a palindrome (345621545126543).

The spelling of 213301223023231 in words is "two hundred thirteen trillion, three hundred one billion, two hundred twenty-three million, twenty-three thousand, two hundred thirty-one".