120311212123 has 8 divisors (see below), whose sum is σ = 124497428400. Its totient is φ = 116127499488.

The previous prime is 120311212117. The next prime is 120311212199. The reversal of 120311212123 is 321212113021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120311212123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120311212123.

It is not an unprimeable number, because it can be changed into a prime (120311212103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 527868 + ... + 720601.

It is an arithmetic number, because the mean of its divisors is an integer number (15562178550).

Almost surely, 2^120311212123 is an apocalyptic number.

120311212123 is a deficient number, since it is larger than the sum of its proper divisors (4186216277).

120311212123 is a wasteful number, since it uses less digits than its factorization.

120311212123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251821.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 120311212123 its reverse (321212113021), we get a palindrome (441523325144).

The spelling of 120311212123 in words is "one hundred twenty billion, three hundred eleven million, two hundred twelve thousand, one hundred twenty-three".