20132430240420 has 96 divisors (see below), whose sum is σ = 62883766592640. Its totient is φ = 5347258992000.

The previous prime is 20132430240389. The next prime is 20132430240463. The reversal of 20132430240420 is 2404203423102.

20132430240420 is a `hidden beast` number, since 2 + 0 + 13 + 243 + 0 + 2 + 404 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74131947 + ... + 74403026.

It is an arithmetic number, because the mean of its divisors is an integer number (655039235340).

Almost surely, 2^{20132430240420} is an apocalyptic number.

20132430240420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20132430240420 is an abundant number, since it is smaller than the sum of its proper divisors (42751336352220).

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

20132430240420 is a wasteful number, since it uses less digits than its factorization.

20132430240420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148535242 (or 148535234 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 20132430240420 its reverse (2404203423102), we get a palindrome (22536633663522).

The spelling of 20132430240420 in words is "twenty trillion, one hundred thirty-two billion, four hundred thirty million, two hundred forty thousand, four hundred twenty".