2121003332123 has 8 divisors (see below), whose sum is σ = 2284169446608. Its totient is φ = 1957838933664.

The previous prime is 2121003332111. The next prime is 2121003332167. The reversal of 2121003332123 is 3212333001212.

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 2121003332123 - 2⁶ = 2121003332059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121003332923) 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, 3411440 + ... + 3984962.

It is an arithmetic number, because the mean of its divisors is an integer number (285521180826).

Almost surely, 2^{2121003332123} is an apocalyptic number.

2121003332123 is a deficient number, since it is larger than the sum of its proper divisors (163166114485).

2121003332123 is a wasteful number, since it uses less digits than its factorization.

2121003332123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858013.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 2121003332123 its reverse (3212333001212), we get a palindrome (5333336333335).

The spelling of 2121003332123 in words is "two trillion, one hundred twenty-one billion, three million, three hundred thirty-two thousand, one hundred twenty-three".