20242431109 has 8 divisors (see below), whose sum is σ = 21309158240. Its totient is φ = 19175837616.

The previous prime is 20242431107. The next prime is 20242431149. The reversal of 20242431109 is 90113424202.

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

It is a cyclic number.

It is not a de Polignac number, because 20242431109 - 2¹ = 20242431107 is a prime.

It is a super-2 number, since 2×20242431109² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20242431107) 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, 479782 + ... + 520264.

It is an arithmetic number, because the mean of its divisors is an integer number (2663644780).

Almost surely, 2^20242431109 is an apocalyptic number.

It is an amenable number.

20242431109 is a deficient number, since it is larger than the sum of its proper divisors (1066727131).

20242431109 is a wasteful number, since it uses less digits than its factorization.

20242431109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66819.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 20242431109 in words is "twenty billion, two hundred forty-two million, four hundred thirty-one thousand, one hundred nine".