120111123012 has 48 divisors (see below), whose sum is σ = 288987652800. Its totient is φ = 38808335488.

The previous prime is 120111122993. The next prime is 120111123029. The reversal of 120111123012 is 210321111021.

It is a junction number, because it is equal to n+sod(n) for n = 120111122982 and 120111123000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1084887 + ... + 1190462.

It is an arithmetic number, because the mean of its divisors is an integer number (6020576100).

Almost surely, 2^120111123012 is an apocalyptic number.

120111123012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120111123012 is an abundant number, since it is smaller than the sum of its proper divisors (168876529788).

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

120111123012 is a wasteful number, since it uses less digits than its factorization.

120111123012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275492 (or 2275490 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 120111123012 its reverse (210321111021), we get a palindrome (330432234033).

The spelling of 120111123012 in words is "one hundred twenty billion, one hundred eleven million, one hundred twenty-three thousand, twelve".