213232043231 has 2 divisors, whose sum is σ = 213232043232. Its totient is φ = 213232043230.

The previous prime is 213232043221. The next prime is 213232043243. The reversal of 213232043231 is 132340232312.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213232043231 - 2¹⁰ = 213232042207 is a prime.

It is a super-2 number, since 2×213232043231² (a number of 23 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 213232043231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213232043221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106616021615 + 106616021616.

It is an arithmetic number, because the mean of its divisors is an integer number (106616021616).

Almost surely, 2^213232043231 is an apocalyptic number.

213232043231 is a deficient number, since it is larger than the sum of its proper divisors (1).

213232043231 is an equidigital number, since it uses as much as digits as its factorization.

213232043231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 213232043231 its reverse (132340232312), we get a palindrome (345572275543).

The spelling of 213232043231 in words is "two hundred thirteen billion, two hundred thirty-two million, forty-three thousand, two hundred thirty-one".