2012303231231 has 4 divisors (see below), whose sum is σ = 2013355142832. Its totient is φ = 2011251319632.

The previous prime is 2012303231179. The next prime is 2012303231243. The reversal of 2012303231231 is 1321323032102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2012303231231 is a prime.

It is a super-2 number, since 2×2012303231231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012303231197 and 2012303231206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012303233231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525952931 + ... + 525956756.

It is an arithmetic number, because the mean of its divisors is an integer number (503338785708).

Almost surely, 2^{2012303231231} is an apocalyptic number.

2012303231231 is a deficient number, since it is larger than the sum of its proper divisors (1051911601).

2012303231231 is a wasteful number, since it uses less digits than its factorization.

2012303231231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051911600.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 2012303231231 its reverse (1321323032102), we get a palindrome (3333626263333).

The spelling of 2012303231231 in words is "two trillion, twelve billion, three hundred three million, two hundred thirty-one thousand, two hundred thirty-one".