31240003323 has 16 divisors (see below), whose sum is σ = 42413342720. Its totient is φ = 20449226304.

The previous prime is 31240003321. The next prime is 31240003331. The reversal of 31240003323 is 32330004213.

It is not a de Polignac number, because 31240003323 - 2¹ = 31240003321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31240003323.

It is not an unprimeable number, because it can be changed into a prime (31240003321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271003 + ... + 368676.

It is an arithmetic number, because the mean of its divisors is an integer number (2650833920).

Almost surely, 2^31240003323 is an apocalyptic number.

31240003323 is a deficient number, since it is larger than the sum of its proper divisors (11173339397).

31240003323 is a wasteful number, since it uses less digits than its factorization.

31240003323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639978.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 31240003323 its reverse (32330004213), we get a palindrome (63570007536).

The spelling of 31240003323 in words is "thirty-one billion, two hundred forty million, three thousand, three hundred twenty-three".