31200013323 has 16 divisors (see below), whose sum is σ = 46679892000. Its totient is φ = 20594066400.

The previous prime is 31200013321. The next prime is 31200013349. The reversal of 31200013323 is 32331000213.

It is not a de Polignac number, because 31200013323 - 2¹ = 31200013321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31200013296 and 31200013305.

It is not an unprimeable number, because it can be changed into a prime (31200013321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5717848 + ... + 5723301.

It is an arithmetic number, because the mean of its divisors is an integer number (2917493250).

Almost surely, 2^31200013323 is an apocalyptic number.

31200013323 is a deficient number, since it is larger than the sum of its proper divisors (15479878677).

31200013323 is a wasteful number, since it uses less digits than its factorization.

31200013323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11441259 (or 11441253 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 31200013323 its reverse (32331000213), we get a palindrome (63531013536).

The spelling of 31200013323 in words is "thirty-one billion, two hundred million, thirteen thousand, three hundred twenty-three".