123012111122 has 8 divisors (see below), whose sum is σ = 194229649200. Its totient is φ = 58268894724.

The previous prime is 123012111109. The next prime is 123012111133. The reversal of 123012111122 is 221111210321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 123012111122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1618580372 + ... + 1618580447.

It is an arithmetic number, because the mean of its divisors is an integer number (24278706150).

Almost surely, 2^123012111122 is an apocalyptic number.

123012111122 is a deficient number, since it is larger than the sum of its proper divisors (71217538078).

123012111122 is a wasteful number, since it uses less digits than its factorization.

123012111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3237160840.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 123012111122 its reverse (221111210321), we get a palindrome (344123321443).

The spelling of 123012111122 in words is "one hundred twenty-three billion, twelve million, one hundred eleven thousand, one hundred twenty-two".