31212003323 has 6 divisors (see below), whose sum is σ = 32941200564. Its totient is φ = 29569265964.

The previous prime is 31212003311. The next prime is 31212003353. The reversal of 31212003323 is 32330021213.

It is not a de Polignac number, because 31212003323 - 2⁶ = 31212003259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31212003295 and 31212003304.

It is not an unprimeable number, because it can be changed into a prime (31212003353) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43229561 + ... + 43230282.

It is an arithmetic number, because the mean of its divisors is an integer number (5490200094).

Almost surely, 2^31212003323 is an apocalyptic number.

31212003323 is a deficient number, since it is larger than the sum of its proper divisors (1729197241).

31212003323 is an equidigital number, since it uses as much as digits as its factorization.

31212003323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86459881 (or 86459862 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31212003323 its reverse (32330021213), we get a palindrome (63542024536).

The spelling of 31212003323 in words is "thirty-one billion, two hundred twelve million, three thousand, three hundred twenty-three".