123312120022 has 64 divisors (see below), whose sum is σ = 236683036800. Its totient is φ = 47862202752.

The previous prime is 123312119981. The next prime is 123312120031. The reversal of 123312120022 is 220021213321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 342208 + ... + 603100.

It is an arithmetic number, because the mean of its divisors is an integer number (3698172450).

Almost surely, 2^123312120022 is an apocalyptic number.

123312120022 is a deficient number, since it is larger than the sum of its proper divisors (113370916778).

123312120022 is a wasteful number, since it uses less digits than its factorization.

123312120022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260982 (or 260968 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 123312120022 its reverse (220021213321), we get a palindrome (343333333343).

The spelling of 123312120022 in words is "one hundred twenty-three billion, three hundred twelve million, one hundred twenty thousand, twenty-two".