4102121123 has 4 divisors (see below), whose sum is σ = 4102321080. Its totient is φ = 4101921168.

The previous prime is 4102121119. The next prime is 4102121171. The reversal of 4102121123 is 3211212014.

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 4102121123 - 2² = 4102121119 is a prime.

It is a super-2 number, since 2×4102121123² = 33654795415525562258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4102121623) 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, 65165 + ... + 111582.

It is an arithmetic number, because the mean of its divisors is an integer number (1025580270).

Almost surely, 2^4102121123 is an apocalyptic number.

4102121123 is a deficient number, since it is larger than the sum of its proper divisors (199957).

4102121123 is a wasteful number, since it uses less digits than its factorization.

4102121123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199956.

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

The square root of 4102121123 is about 64047.8034205702. The cubic root of 4102121123 is about 1600.7966245265.

Adding to 4102121123 its reverse (3211212014), we get a palindrome (7313333137).

The spelling of 4102121123 in words is "four billion, one hundred two million, one hundred twenty-one thousand, one hundred twenty-three".