2012312311231 has 2 divisors, whose sum is σ = 2012312311232. Its totient is φ = 2012312311230.

The previous prime is 2012312311181. The next prime is 2012312311267. The reversal of 2012312311231 is 1321132132102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2012312311231 - 2⁹ = 2012312310719 is a prime.

It is a super-2 number, since 2×2012312311231² (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 (2012312317231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006156155615 + 1006156155616.

It is an arithmetic number, because the mean of its divisors is an integer number (1006156155616).

Almost surely, 2^{2012312311231} is an apocalyptic number.

2012312311231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012312311231 is an equidigital number, since it uses as much as digits as its factorization.

2012312311231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 2012312311231 its reverse (1321132132102), we get a palindrome (3333444443333).

The spelling of 2012312311231 in words is "two trillion, twelve billion, three hundred twelve million, three hundred eleven thousand, two hundred thirty-one".