13450020541431 has 4 divisors (see below), whose sum is σ = 17933360721912. Its totient is φ = 8966680360952.

The previous prime is 13450020541429. The next prime is 13450020541457. The reversal of 13450020541431 is 13414502005431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13450020541431 - 2¹ = 13450020541429 is a prime.

It is a super-2 number, since 2×13450020541431² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13450020541392 and 13450020541401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13450020541631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2241670090236 + ... + 2241670090241.

It is an arithmetic number, because the mean of its divisors is an integer number (4483340180478).

Almost surely, 2^{13450020541431} is an apocalyptic number.

13450020541431 is a deficient number, since it is larger than the sum of its proper divisors (4483340180481).

13450020541431 is an equidigital number, since it uses as much as digits as its factorization.

13450020541431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4483340180480.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 13450020541431 its reverse (13414502005431), we get a palindrome (26864522546862).

The spelling of 13450020541431 in words is "thirteen trillion, four hundred fifty billion, twenty million, five hundred forty-one thousand, four hundred thirty-one".