120200312123 has 16 divisors (see below), whose sum is σ = 126890893440. Its totient is φ = 113546563200.

The previous prime is 120200312093. The next prime is 120200312129. The reversal of 120200312123 is 321213002021.

It is a cyclic number.

It is not a de Polignac number, because 120200312123 - 2⁸ = 120200311867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120200312129) 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, 12692036 + ... + 12701502.

It is an arithmetic number, because the mean of its divisors is an integer number (7930680840).

Almost surely, 2^120200312123 is an apocalyptic number.

120200312123 is a deficient number, since it is larger than the sum of its proper divisors (6690581317).

120200312123 is a wasteful number, since it uses less digits than its factorization.

120200312123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11338.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 120200312123 its reverse (321213002021), we get a palindrome (441413314144).

The spelling of 120200312123 in words is "one hundred twenty billion, two hundred million, three hundred twelve thousand, one hundred twenty-three".