31023200223012 has 24 divisors (see below), whose sum is σ = 72391185820800. Its totient is φ = 10340535507616.

The previous prime is 31023200222953. The next prime is 31023200223101. The reversal of 31023200223012 is 21032200232013.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 31023200223012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66160812 + ... + 66628067.

It is an arithmetic number, because the mean of its divisors is an integer number (3016299409200).

Almost surely, 2^{31023200223012} is an apocalyptic number.

It is an amenable number.

31023200223012 is an abundant number, since it is smaller than the sum of its proper divisors (41367985597788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31023200223012 is a wasteful number, since it uses less digits than its factorization.

31023200223012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132808355 (or 132808353 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 31023200223012 its reverse (21032200232013), we get a palindrome (52055400455025).

Subtracting from 31023200223012 its reverse (21032200232013), we obtain a palindrome (9990999990999).

The spelling of 31023200223012 in words is "thirty-one trillion, twenty-three billion, two hundred million, two hundred twenty-three thousand, twelve".