20124551451441 has 4 divisors (see below), whose sum is σ = 26832735268592. Its totient is φ = 13416367634292.

The previous prime is 20124551451419. The next prime is 20124551451517. The reversal of 20124551451441 is 14415415542102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20124551451441 - 2¹¹ = 20124551449393 is a prime.

It is a super-2 number, since 2×20124551451441² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20124551451441.

It is not an unprimeable number, because it can be changed into a prime (20124551451841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3354091908571 + ... + 3354091908576.

It is an arithmetic number, because the mean of its divisors is an integer number (6708183817148).

Almost surely, 2^{20124551451441} is an apocalyptic number.

It is an amenable number.

20124551451441 is a deficient number, since it is larger than the sum of its proper divisors (6708183817151).

20124551451441 is an equidigital number, since it uses as much as digits as its factorization.

20124551451441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6708183817150.

The product of its (nonzero) digits is 128000, while the sum is 39.

Adding to 20124551451441 its reverse (14415415542102), we get a palindrome (34539966993543).

The spelling of 20124551451441 in words is "twenty trillion, one hundred twenty-four billion, five hundred fifty-one million, four hundred fifty-one thousand, four hundred forty-one".