312111122330 has 16 divisors (see below), whose sum is σ = 642057166080. Its totient is φ = 107009527632.

The previous prime is 312111122317. The next prime is 312111122347. The reversal of 312111122330 is 33221111213.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2229365090 + ... + 2229365229.

It is an arithmetic number, because the mean of its divisors is an integer number (40128572880).

Almost surely, 2^312111122330 is an apocalyptic number.

312111122330 is an abundant number, since it is smaller than the sum of its proper divisors (329946043750).

312111122330 is a wasteful number, since it uses less digits than its factorization.

312111122330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4458730333.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 312111122330 its reverse (33221111213), we get a palindrome (345332233543).

The spelling of 312111122330 in words is "three hundred twelve billion, one hundred eleven million, one hundred twenty-two thousand, three hundred thirty".