23040221547517 has 4 divisors (see below), whose sum is σ = 24252864786880. Its totient is φ = 21827578308156.

The previous prime is 23040221547503. The next prime is 23040221547559. The reversal of 23040221547517 is 71574512204032.

It is a happy number.

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 23040221547517 - 2¹⁹ = 23040221023229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23040221547587) 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, 606321619653 + ... + 606321619690.

It is an arithmetic number, because the mean of its divisors is an integer number (6063216196720).

Almost surely, 2^{23040221547517} is an apocalyptic number.

It is an amenable number.

23040221547517 is a deficient number, since it is larger than the sum of its proper divisors (1212643239363).

23040221547517 is a wasteful number, since it uses less digits than its factorization.

23040221547517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212643239362.

The product of its (nonzero) digits is 470400, while the sum is 43.

The spelling of 23040221547517 in words is "twenty-three trillion, forty billion, two hundred twenty-one million, five hundred forty-seven thousand, five hundred seventeen".