120002102123 has 8 divisors (see below), whose sum is σ = 128131669248. Its totient is φ = 112115208744.

The previous prime is 120002102093. The next prime is 120002102131. The reversal of 120002102123 is 321201200021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120002102123 - 2²⁰ = 120001053547 is a prime.

It is a super-2 number, since 2×120002102123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120002102098 and 120002102107.

It is not an unprimeable number, because it can be changed into a prime (120002105123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60667415 + ... + 60669392.

It is an arithmetic number, because the mean of its divisors is an integer number (16016458656).

Almost surely, 2^120002102123 is an apocalyptic number.

120002102123 is a deficient number, since it is larger than the sum of its proper divisors (8129567125).

120002102123 is a wasteful number, since it uses less digits than its factorization.

120002102123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121336873.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 120002102123 its reverse (321201200021), we get a palindrome (441203302144).

The spelling of 120002102123 in words is "one hundred twenty billion, two million, one hundred two thousand, one hundred twenty-three".