23520402023530 has 8 divisors (see below), whose sum is σ = 42336723642372. Its totient is φ = 9408160809408.

The previous prime is 23520402023479. The next prime is 23520402023537. The reversal of 23520402023530 is 3532020402532.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20096455170649 + 3423946852881 = 4482907^2 + 1850391^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×23520402023530² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23520402023492 and 23520402023501.

It is not an unprimeable number, because it can be changed into a prime (23520402023537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1176020101167 + ... + 1176020101186.

Almost surely, 2^{23520402023530} is an apocalyptic number.

23520402023530 is a deficient number, since it is larger than the sum of its proper divisors (18816321618842).

23520402023530 is a wasteful number, since it uses less digits than its factorization.

23520402023530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2352040202360.

The product of its (nonzero) digits is 43200, while the sum is 31.

The spelling of 23520402023530 in words is "twenty-three trillion, five hundred twenty billion, four hundred two million, twenty-three thousand, five hundred thirty".