120001122123 has 4 divisors (see below), whose sum is σ = 160001496168. Its totient is φ = 80000748080.

The previous prime is 120001122121. The next prime is 120001122133. The reversal of 120001122123 is 321221100021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120001122123 - 2¹ = 120001122121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120001122121) 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, 20000187018 + ... + 20000187023.

It is an arithmetic number, because the mean of its divisors is an integer number (40000374042).

Almost surely, 2^120001122123 is an apocalyptic number.

120001122123 is a deficient number, since it is larger than the sum of its proper divisors (40000374045).

120001122123 is an equidigital number, since it uses as much as digits as its factorization.

120001122123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40000374044.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 120001122123 its reverse (321221100021), we get a palindrome (441222222144).

The spelling of 120001122123 in words is "one hundred twenty billion, one million, one hundred twenty-two thousand, one hundred twenty-three".