20123134011424 has 48 divisors (see below), whose sum is σ = 40100792981760. Its totient is φ = 9938842248960.

The previous prime is 20123134011397. The next prime is 20123134011457. The reversal of 20123134011424 is 42411043132102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20123134011392 and 20123134011401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17122897 + ... + 18260335.

It is an arithmetic number, because the mean of its divisors is an integer number (835433187120).

Almost surely, 2^{20123134011424} is an apocalyptic number.

It is an amenable number.

20123134011424 is a deficient number, since it is larger than the sum of its proper divisors (19977658970336).

20123134011424 is a wasteful number, since it uses less digits than its factorization.

20123134011424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144193 (or 1144185 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 20123134011424 its reverse (42411043132102), we get a palindrome (62534177143526).

The spelling of 20123134011424 in words is "twenty trillion, one hundred twenty-three billion, one hundred thirty-four million, eleven thousand, four hundred twenty-four".