120001220120123 has 4 divisors (see below), whose sum is σ = 120001268957040. Its totient is φ = 120001171283208.

The previous prime is 120001220120113. The next prime is 120001220120129. The reversal of 120001220120123 is 321021022100021.

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 120001220120123 - 2³⁴ = 119984040250939 is a prime.

It is a super-2 number, since 2×120001220120123² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120001220120129) 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, 20525840 + ... + 25715997.

It is an arithmetic number, because the mean of its divisors is an integer number (30000317239260).

Almost surely, 2^{120001220120123} is an apocalyptic number.

120001220120123 is a deficient number, since it is larger than the sum of its proper divisors (48836917).

120001220120123 is an equidigital number, since it uses as much as digits as its factorization.

120001220120123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48836916.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 120001220120123 its reverse (321021022100021), we get a palindrome (441022242220144).

The spelling of 120001220120123 in words is "one hundred twenty trillion, one billion, two hundred twenty million, one hundred twenty thousand, one hundred twenty-three".