20426254323124 has 72 divisors (see below), whose sum is σ = 39768377844888. Its totient is φ = 9169222533120.

The previous prime is 20426254323119. The next prime is 20426254323151. The reversal of 20426254323124 is 42132345262402.

It can be written as a sum of positive squares in 12 ways, for example, as 10169287300624 + 10256967022500 = 3188932^2 + 3202650^2 .

It is a super-2 number, since 2×20426254323124² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66303204 + ... + 66610564.

It is an arithmetic number, because the mean of its divisors is an integer number (552338581179).

Almost surely, 2^{20426254323124} is an apocalyptic number.

It is an amenable number.

20426254323124 is a deficient number, since it is larger than the sum of its proper divisors (19342123521764).

20426254323124 is a wasteful number, since it uses less digits than its factorization.

20426254323124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310085 (or 310070 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 40.

Adding to 20426254323124 its reverse (42132345262402), we get a palindrome (62558599585526).

The spelling of 20426254323124 in words is "twenty trillion, four hundred twenty-six billion, two hundred fifty-four million, three hundred twenty-three thousand, one hundred twenty-four".