10023346521 has 6 divisors (see below), whose sum is σ = 14478167210. Its totient is φ = 6682231008.

The previous prime is 10023346499. The next prime is 10023346561. The reversal of 10023346521 is 12564332001.

10023346521 is a `hidden beast` number, since 1 + 0 + 0 + 2 + 3 + 3 + 4 + 652 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9340256025 + 683090496 = 96645^2 + 26136^2 .

It is not a de Polignac number, because 10023346521 - 2⁶ = 10023346457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10023346561) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 556852576 + ... + 556852593.

Almost surely, 2^10023346521 is an apocalyptic number.

It is an amenable number.

10023346521 is a deficient number, since it is larger than the sum of its proper divisors (4454820689).

10023346521 is a wasteful number, since it uses less digits than its factorization.

10023346521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113705175 (or 1113705172 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 10023346521 its reverse (12564332001), we get a palindrome (22587678522).

The spelling of 10023346521 in words is "ten billion, twenty-three million, three hundred forty-six thousand, five hundred twenty-one".