2312611231 has 16 divisors (see below), whose sum is σ = 2662435840. Its totient is φ = 1967703840.

The previous prime is 2312611211. The next prime is 2312611243. The reversal of 2312611231 is 1321162132.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2312611231 - 2⁹ = 2312610719 is a prime.

It is a super-2 number, since 2×2312611231² = 10696341411494670722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312611211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 586336 + ... + 590266.

It is an arithmetic number, because the mean of its divisors is an integer number (166402240).

Almost surely, 2^2312611231 is an apocalyptic number.

2312611231 is a deficient number, since it is larger than the sum of its proper divisors (349824609).

2312611231 is a wasteful number, since it uses less digits than its factorization.

2312611231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4534.

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

The square root of 2312611231 is about 48089.6166651388. The cubic root of 2312611231 is about 1322.4143201556.

Adding to 2312611231 its reverse (1321162132), we get a palindrome (3633773363).

The spelling of 2312611231 in words is "two billion, three hundred twelve million, six hundred eleven thousand, two hundred thirty-one".