31312432323 has 24 divisors (see below), whose sum is σ = 47613245472. Its totient is φ = 19790631168.

The previous prime is 31312432321. The next prime is 31312432351. The reversal of 31312432323 is 32323421313.

31312432323 is a `hidden beast` number, since 3 + 1 + 312 + 4 + 323 + 23 = 666.

It is not a de Polignac number, because 31312432323 - 2¹ = 31312432321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31312432321) 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 23 ways as a sum of consecutive naturals, for example, 645936 + ... + 692717.

It is an arithmetic number, because the mean of its divisors is an integer number (1983885228).

Almost surely, 2^31312432323 is an apocalyptic number.

31312432323 is a deficient number, since it is larger than the sum of its proper divisors (16300813149).

31312432323 is a wasteful number, since it uses less digits than its factorization.

31312432323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338795 (or 1338792 counting only the distinct ones).

The product of its digits is 7776, while the sum is 27.

Adding to 31312432323 its reverse (32323421313), we get a palindrome (63635853636).

The spelling of 31312432323 in words is "thirty-one billion, three hundred twelve million, four hundred thirty-two thousand, three hundred twenty-three".