312231331330 has 48 divisors (see below), whose sum is σ = 580970776320. Its totient is φ = 120813800160.

The previous prime is 312231331309. The next prime is 312231331331. The reversal of 312231331330 is 33133132213.

It is a junction number, because it is equal to n+sod(n) for n = 312231331295 and 312231331304.

It is not an unprimeable number, because it can be changed into a prime (312231331331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30429741 + ... + 30439999.

It is an arithmetic number, because the mean of its divisors is an integer number (12103557840).

Almost surely, 2^312231331330 is an apocalyptic number.

312231331330 is a deficient number, since it is larger than the sum of its proper divisors (268739444990).

312231331330 is a wasteful number, since it uses less digits than its factorization.

312231331330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13495 (or 13464 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 312231331330 its reverse (33133132213), we get a palindrome (345364463543).

The spelling of 312231331330 in words is "three hundred twelve billion, two hundred thirty-one million, three hundred thirty-one thousand, three hundred thirty".