31212103203323 has 6 divisors (see below), whose sum is σ = 36307956787596. Its totient is φ = 26753231317092.

The previous prime is 31212103203301. The next prime is 31212103203331. The reversal of 31212103203323 is 32330230121213.

It is not a de Polignac number, because 31212103203323 - 2⁸ = 31212103203067 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31212103203292 and 31212103203301.

It is not an unprimeable number, because it can be changed into a prime (31212103205323) 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, 318490848965 + ... + 318490849062.

It is an arithmetic number, because the mean of its divisors is an integer number (6051326131266).

Almost surely, 2^{31212103203323} is an apocalyptic number.

31212103203323 is a deficient number, since it is larger than the sum of its proper divisors (5095853584273).

31212103203323 is an equidigital number, since it uses as much as digits as its factorization.

31212103203323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636981698041 (or 636981698034 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 31212103203323 its reverse (32330230121213), we get a palindrome (63542333324536).

The spelling of 31212103203323 in words is "thirty-one trillion, two hundred twelve billion, one hundred three million, two hundred three thousand, three hundred twenty-three".