20242323021 has 16 divisors (see below), whose sum is σ = 27461728448. Its totient is φ = 13259376000.

The previous prime is 20242322963. The next prime is 20242323041. The reversal of 20242323021 is 12032324202.

It is not a de Polignac number, because 20242323021 - 2¹⁰ = 20242321997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20242323041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112446 + ... + 230496.

It is an arithmetic number, because the mean of its divisors is an integer number (1716358028).

Almost surely, 2^20242323021 is an apocalyptic number.

It is an amenable number.

20242323021 is a deficient number, since it is larger than the sum of its proper divisors (7219405427).

20242323021 is a wasteful number, since it uses less digits than its factorization.

20242323021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119052.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20242323021 its reverse (12032324202), we get a palindrome (32274647223).

The spelling of 20242323021 in words is "twenty billion, two hundred forty-two million, three hundred twenty-three thousand, twenty-one".