20431411221431 has 8 divisors (see below), whose sum is σ = 23350432275744. Its totient is φ = 17512452172800.

The previous prime is 20431411221409. The next prime is 20431411221479. The reversal of 20431411221431 is 13412211413402.

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 20431411221431 - 2⁶ = 20431411221367 is a prime.

It is a super-2 number, since 2×20431411221431² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20431411221394 and 20431411221403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20431411229431) 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, 14793170 + ... + 16115231.

It is an arithmetic number, because the mean of its divisors is an integer number (2918804034468).

Almost surely, 2^{20431411221431} is an apocalyptic number.

20431411221431 is a deficient number, since it is larger than the sum of its proper divisors (2919021054313).

20431411221431 is an equidigital number, since it uses as much as digits as its factorization.

20431411221431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31002841.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 20431411221431 its reverse (13412211413402), we get a palindrome (33843622634833).

The spelling of 20431411221431 in words is "twenty trillion, four hundred thirty-one billion, four hundred eleven million, two hundred twenty-one thousand, four hundred thirty-one".