120102311123 has 4 divisors (see below), whose sum is σ = 120104508048. Its totient is φ = 120100114200.

The previous prime is 120102311113. The next prime is 120102311171. The reversal of 120102311123 is 321113201021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321113201021 = 7573 ⋅42402377.

It is a cyclic number.

It is not a de Polignac number, because 120102311123 - 2¹⁰ = 120102310099 is a prime.

It is a super-2 number, since 2×120102311123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120102311113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1014311 + ... + 1126512.

It is an arithmetic number, because the mean of its divisors is an integer number (30026127012).

Almost surely, 2^120102311123 is an apocalyptic number.

120102311123 is a deficient number, since it is larger than the sum of its proper divisors (2196925).

120102311123 is an equidigital number, since it uses as much as digits as its factorization.

120102311123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196924.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 120102311123 its reverse (321113201021), we get a palindrome (441215512144).

The spelling of 120102311123 in words is "one hundred twenty billion, one hundred two million, three hundred eleven thousand, one hundred twenty-three".