20124551451442 has 16 divisors (see below), whose sum is σ = 30251910173472. Its totient is φ = 10040582025760.

The previous prime is 20124551451419. The next prime is 20124551451517. The reversal of 20124551451442 is 24415415542102.

It is a super-2 number, since 2×20124551451442² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20124551451395 and 20124551451404.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 93180993 + ... + 93396715.

It is an arithmetic number, because the mean of its divisors is an integer number (1890744385842).

Almost surely, 2^{20124551451442} is an apocalyptic number.

20124551451442 is a deficient number, since it is larger than the sum of its proper divisors (10127358722030).

20124551451442 is a wasteful number, since it uses less digits than its factorization.

20124551451442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316073.

The product of its (nonzero) digits is 256000, while the sum is 40.

Adding to 20124551451442 its reverse (24415415542102), we get a palindrome (44539966993544).

The spelling of 20124551451442 in words is "twenty trillion, one hundred twenty-four billion, five hundred fifty-one million, four hundred fifty-one thousand, four hundred forty-two".