10233331021 has 2 divisors, whose sum is σ = 10233331022. Its totient is φ = 10233331020.

The previous prime is 10233331019. The next prime is 10233331079. The reversal of 10233331021 is 12013333201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8767513225 + 1465817796 = 93635^2 + 38286^2 .

It is a cyclic number.

It is not a de Polignac number, because 10233331021 - 2¹ = 10233331019 is a prime.

Together with 10233331019, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 10233331021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10233331421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5116665510 + 5116665511.

It is an arithmetic number, because the mean of its divisors is an integer number (5116665511).

Almost surely, 2^10233331021 is an apocalyptic number.

It is an amenable number.

10233331021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10233331021 is an equidigital number, since it uses as much as digits as its factorization.

10233331021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 10233331021 its reverse (12013333201), we get a palindrome (22246664222).

The spelling of 10233331021 in words is "ten billion, two hundred thirty-three million, three hundred thirty-one thousand, twenty-one".