20542123224 has 48 divisors (see below), whose sum is σ = 63582763920. Its totient is φ = 5869177920.

The previous prime is 20542123183. The next prime is 20542123229. The reversal of 20542123224 is 42232124502.

20542123224 is a `hidden beast` number, since 2 + 0 + 5 + 421 + 232 + 2 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20542123229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20378587 + ... + 20379594.

It is an arithmetic number, because the mean of its divisors is an integer number (1324640915).

Almost surely, 2^20542123224 is an apocalyptic number.

20542123224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20542123224 is an abundant number, since it is smaller than the sum of its proper divisors (43040640696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20542123224 is a wasteful number, since it uses less digits than its factorization.

20542123224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40758200 (or 40758193 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 20542123224 its reverse (42232124502), we get a palindrome (62774247726).

The spelling of 20542123224 in words is "twenty billion, five hundred forty-two million, one hundred twenty-three thousand, two hundred twenty-four".