2121033923 has 8 divisors (see below), whose sum is σ = 2136996000. Its totient is φ = 2105095168.

The previous prime is 2121033911. The next prime is 2121033947. The reversal of 2121033923 is 3293301212.

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 2121033923 - 2⁸ = 2121033667 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2121033892 and 2121033901.

It is not an unprimeable number, because it can be changed into a prime (2121038923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204890 + ... + 214992.

It is an arithmetic number, because the mean of its divisors is an integer number (267124500).

Almost surely, 2^2121033923 is an apocalyptic number.

2121033923 is a deficient number, since it is larger than the sum of its proper divisors (15962077).

2121033923 is a wasteful number, since it uses less digits than its factorization.

2121033923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11661.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 2121033923 is about 46054.6840505936. The cubic root of 2121033923 is about 1284.8404618561.

The spelling of 2121033923 in words is "two billion, one hundred twenty-one million, thirty-three thousand, nine hundred twenty-three".