212412331231 has 2 divisors, whose sum is σ = 212412331232. Its totient is φ = 212412331230.

The previous prime is 212412331217. The next prime is 212412331237. The reversal of 212412331231 is 132133214212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212412331231 - 2⁵ = 212412331199 is a prime.

It is a super-2 number, since 2×212412331231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212412331196 and 212412331205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212412331237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106206165615 + 106206165616.

It is an arithmetic number, because the mean of its divisors is an integer number (106206165616).

Almost surely, 2^212412331231 is an apocalyptic number.

212412331231 is a deficient number, since it is larger than the sum of its proper divisors (1).

212412331231 is an equidigital number, since it uses as much as digits as its factorization.

212412331231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

Adding to 212412331231 its reverse (132133214212), we get a palindrome (344545545443).

The spelling of 212412331231 in words is "two hundred twelve billion, four hundred twelve million, three hundred thirty-one thousand, two hundred thirty-one".