20124551451419 has 2 divisors, whose sum is σ = 20124551451420. Its totient is φ = 20124551451418.

The previous prime is 20124551451397. The next prime is 20124551451517. The reversal of 20124551451419 is 91415415542102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20124551451419 - 2⁸ = 20124551451163 is a prime.

It is a super-2 number, since 2×20124551451419² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20124551451419.

It is not a weakly prime, because it can be changed into another prime (20124551451019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10062275725709 + 10062275725710.

It is an arithmetic number, because the mean of its divisors is an integer number (10062275725710).

Almost surely, 2^{20124551451419} is an apocalyptic number.

20124551451419 is a deficient number, since it is larger than the sum of its proper divisors (1).

20124551451419 is an equidigital number, since it uses as much as digits as its factorization.

20124551451419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288000, while the sum is 44.

The spelling of 20124551451419 in words is "twenty trillion, one hundred twenty-four billion, five hundred fifty-one million, four hundred fifty-one thousand, four hundred nineteen".