2321312031 has 12 divisors (see below), whose sum is σ = 3443628552. Its totient is φ = 1505715696.

The previous prime is 2321312027. The next prime is 2321312051. The reversal of 2321312031 is 1302131232.

2321312031 is a `hidden beast` number, since 2 + 321 + 312 + 0 + 31 = 666.

2321312031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2321312031 - 2² = 2321312027 is a prime.

It is a super-2 number, since 2×2321312031² = 10776979090530689922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2321311995 and 2321312013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321312011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3485121 + ... + 3485786.

It is an arithmetic number, because the mean of its divisors is an integer number (286969046).

Almost surely, 2^2321312031 is an apocalyptic number.

2321312031 is a deficient number, since it is larger than the sum of its proper divisors (1122316521).

2321312031 is a wasteful number, since it uses less digits than its factorization.

2321312031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6970950 (or 6970947 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2321312031 is about 48179.9961706101. The cubic root of 2321312031 is about 1324.0706963753.

Adding to 2321312031 its reverse (1302131232), we get a palindrome (3623443263).

The spelling of 2321312031 in words is "two billion, three hundred twenty-one million, three hundred twelve thousand, thirty-one".