120001220121023 has 4 divisors (see below), whose sum is σ = 120006134401560. Its totient is φ = 119996305840488.

The previous prime is 120001220121017. The next prime is 120001220121031. The reversal of 120001220121023 is 320121022100021.

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 120001220121023 - 2¹⁶ = 120001220055487 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120001220120992 and 120001220121010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120001220123023) 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, 2457103640 + ... + 2457152477.

It is an arithmetic number, because the mean of its divisors is an integer number (30001533600390).

Almost surely, 2^{120001220121023} is an apocalyptic number.

120001220121023 is a deficient number, since it is larger than the sum of its proper divisors (4914280537).

120001220121023 is an equidigital number, since it uses as much as digits as its factorization.

120001220121023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4914280536.

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

Adding to 120001220121023 its reverse (320121022100021), we get a palindrome (440122242221044).

The spelling of 120001220121023 in words is "one hundred twenty trillion, one billion, two hundred twenty million, one hundred twenty-one thousand, twenty-three".