20042153103240 has 96 divisors (see below), whose sum is σ = 65178942093720. Its totient is φ = 5341132560384.

The previous prime is 20042153103223. The next prime is 20042153103281. The reversal of 20042153103240 is 4230135124002.

20042153103240 is a `hidden beast` number, since 2 + 0 + 0 + 4 + 21 + 5 + 310 + 324 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 10336597943364 + 9705555159876 = 3215058^2 + 3115374^2 .

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, 17365147 + ... + 18483306.

Almost surely, 2^{20042153103240} is an apocalyptic number.

20042153103240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20042153103240 is an abundant number, since it is smaller than the sum of its proper divisors (45136788990480).

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

20042153103240 is a wasteful number, since it uses less digits than its factorization.

20042153103240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35850023 (or 35850016 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 20042153103240 its reverse (4230135124002), we get a palindrome (24272288227242).

The spelling of 20042153103240 in words is "twenty trillion, forty-two billion, one hundred fifty-three million, one hundred three thousand, two hundred forty".