20523124018 has 8 divisors (see below), whose sum is σ = 32404932720. Its totient is φ = 9721479780.

The previous prime is 20523124009. The next prime is 20523124019. The reversal of 20523124018 is 81042132502.

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

It is not an unprimeable number, because it can be changed into a prime (20523124019) 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, 270041068 + ... + 270041143.

It is an arithmetic number, because the mean of its divisors is an integer number (4050616590).

Almost surely, 2^20523124018 is an apocalyptic number.

20523124018 is a deficient number, since it is larger than the sum of its proper divisors (11881808702).

20523124018 is a wasteful number, since it uses less digits than its factorization.

20523124018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540082232.

The product of its (nonzero) digits is 3840, while the sum is 28.

The spelling of 20523124018 in words is "twenty billion, five hundred twenty-three million, one hundred twenty-four thousand, eighteen".