20024140231 has 2 divisors, whose sum is σ = 20024140232. Its totient is φ = 20024140230.

The previous prime is 20024140207. The next prime is 20024140259. The reversal of 20024140231 is 13204142002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20024140231 - 2¹⁹ = 20023615943 is a prime.

It is a super-2 number, since 2×20024140231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20024140199 and 20024140208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20024140291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10012070115 + 10012070116.

It is an arithmetic number, because the mean of its divisors is an integer number (10012070116).

Almost surely, 2^20024140231 is an apocalyptic number.

20024140231 is a deficient number, since it is larger than the sum of its proper divisors (1).

20024140231 is an equidigital number, since it uses as much as digits as its factorization.

20024140231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20024140231 its reverse (13204142002), we get a palindrome (33228282233).

The spelling of 20024140231 in words is "twenty billion, twenty-four million, one hundred forty thousand, two hundred thirty-one".