20242012521 has 8 divisors (see below), whose sum is σ = 26994552160. Its totient is φ = 13492073952.

The previous prime is 20242012481. The next prime is 20242012541. The reversal of 20242012521 is 12521024202.

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

It is not a de Polignac number, because 20242012521 - 2¹⁹ = 20241488233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20242012541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 632035 + ... + 663288.

It is an arithmetic number, because the mean of its divisors is an integer number (3374319020).

Almost surely, 2^20242012521 is an apocalyptic number.

It is an amenable number.

20242012521 is a deficient number, since it is larger than the sum of its proper divisors (6752539639).

20242012521 is a wasteful number, since it uses less digits than its factorization.

20242012521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300535.

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 20242012521 its reverse (12521024202), we get a palindrome (32763036723).

The spelling of 20242012521 in words is "twenty billion, two hundred forty-two million, twelve thousand, five hundred twenty-one".