10233838921 has 4 divisors (see below), whose sum is σ = 10236315600. Its totient is φ = 10231362244.

The previous prime is 10233838801. The next prime is 10233838969. The reversal of 10233838921 is 12983833201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10233838921 - 2⁹ = 10233838409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10233838981) 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, 1232131 + ... + 1240408.

It is an arithmetic number, because the mean of its divisors is an integer number (2559078900).

Almost surely, 2^10233838921 is an apocalyptic number.

It is an amenable number.

10233838921 is a deficient number, since it is larger than the sum of its proper divisors (2476679).

10233838921 is an equidigital number, since it uses as much as digits as its factorization.

10233838921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2476678.

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 10233838921 in words is "ten billion, two hundred thirty-three million, eight hundred thirty-eight thousand, nine hundred twenty-one".