120111002312 has 64 divisors (see below), whose sum is σ = 260776039680. Its totient is φ = 50801006592.

The previous prime is 120111002311. The next prime is 120111002317. The reversal of 120111002312 is 213200111021.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (120111002311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1433693 + ... + 1515155.

It is an arithmetic number, because the mean of its divisors is an integer number (4074625620).

Almost surely, 2^120111002312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120111002312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130388019840).

120111002312 is an abundant number, since it is smaller than the sum of its proper divisors (140665037368).

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

120111002312 is a wasteful number, since it uses less digits than its factorization.

120111002312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81822 (or 81818 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 120111002312 its reverse (213200111021), we get a palindrome (333311113333).

The spelling of 120111002312 in words is "one hundred twenty billion, one hundred eleven million, two thousand, three hundred twelve".