2121102023 has 8 divisors (see below), whose sum is σ = 2145974400. Its totient is φ = 2096252928.

The previous prime is 2121102001. The next prime is 2121102041. The reversal of 2121102023 is 3202011212.

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 2121102023 - 2²⁰ = 2120053447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2121101989 and 2121102007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121122023) 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, 234890 + ... + 243752.

It is an arithmetic number, because the mean of its divisors is an integer number (268246800).

Almost surely, 2^2121102023 is an apocalyptic number.

2121102023 is a deficient number, since it is larger than the sum of its proper divisors (24872377).

2121102023 is an equidigital number, since it uses as much as digits as its factorization.

2121102023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11641.

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

The square root of 2121102023 is about 46055.4233831370. The cubic root of 2121102023 is about 1284.8542124925.

Adding to 2121102023 its reverse (3202011212), we get a palindrome (5323113235).

The spelling of 2121102023 in words is "two billion, one hundred twenty-one million, one hundred two thousand, twenty-three".