120123111213 has 24 divisors (see below), whose sum is σ = 205642859968. Its totient is φ = 68641776864.

The previous prime is 120123111203. The next prime is 120123111233. The reversal of 120123111213 is 312111321021.

It is not a de Polignac number, because 120123111213 - 2⁵ = 120123111181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120123111203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35307856 + ... + 35311257.

Almost surely, 2^120123111213 is an apocalyptic number.

It is an amenable number.

120123111213 is a deficient number, since it is larger than the sum of its proper divisors (85519748755).

120123111213 is an frugal number, since it uses more digits than its factorization.

120123111213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70619135 (or 70619123 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 120123111213 its reverse (312111321021), we get a palindrome (432234432234).

The spelling of 120123111213 in words is "one hundred twenty billion, one hundred twenty-three million, one hundred eleven thousand, two hundred thirteen".