2012031223231 has 2 divisors, whose sum is σ = 2012031223232. Its totient is φ = 2012031223230.

The previous prime is 2012031223133. The next prime is 2012031223277. The reversal of 2012031223231 is 1323221302102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2012031223231 - 2¹¹ = 2012031221183 is a prime.

It is a super-2 number, since 2×2012031223231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012031223291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006015611615 + 1006015611616.

It is an arithmetic number, because the mean of its divisors is an integer number (1006015611616).

Almost surely, 2^{2012031223231} is an apocalyptic number.

2012031223231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012031223231 is an equidigital number, since it uses as much as digits as its factorization.

2012031223231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2012031223231 its reverse (1323221302102), we get a palindrome (3335252525333).

The spelling of 2012031223231 in words is "two trillion, twelve billion, thirty-one million, two hundred twenty-three thousand, two hundred thirty-one".