20424320293 has 16 divisors (see below), whose sum is σ = 22526163072. Its totient is φ = 18403560000.

The previous prime is 20424320243. The next prime is 20424320311. The reversal of 20424320293 is 39202342402.

It is a cyclic number.

It is not a de Polignac number, because 20424320293 - 2¹³ = 20424312101 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 (20424320243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16323 + ... + 202768.

It is an arithmetic number, because the mean of its divisors is an integer number (1407885192).

Almost surely, 2^20424320293 is an apocalyptic number.

It is an amenable number.

20424320293 is a deficient number, since it is larger than the sum of its proper divisors (2101842779).

20424320293 is a wasteful number, since it uses less digits than its factorization.

20424320293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219276.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 20424320293 its reverse (39202342402), we get a palindrome (59626662695).

The spelling of 20424320293 in words is "twenty billion, four hundred twenty-four million, three hundred twenty thousand, two hundred ninety-three".