20330241431 has 8 divisors (see below), whose sum is σ = 20565069840. Its totient is φ = 20095555392.

The previous prime is 20330241391. The next prime is 20330241479. The reversal of 20330241431 is 13414203302.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20330241431 is a prime.

It is a super-2 number, since 2×20330241431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20330241397 and 20330241406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20330241031) 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, 266336 + ... + 334058.

It is an arithmetic number, because the mean of its divisors is an integer number (2570633730).

Almost surely, 2^20330241431 is an apocalyptic number.

20330241431 is a deficient number, since it is larger than the sum of its proper divisors (234828409).

20330241431 is an equidigital number, since it uses as much as digits as its factorization.

20330241431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71185.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20330241431 its reverse (13414203302), we get a palindrome (33744444733).

The spelling of 20330241431 in words is "twenty billion, three hundred thirty million, two hundred forty-one thousand, four hundred thirty-one".