21230230202424 has 32 divisors (see below), whose sum is σ = 58972861674000. Its totient is φ = 7076743400736.

The previous prime is 21230230202407. The next prime is 21230230202429. The reversal of 21230230202424 is 42420203203212.

21230230202424 is a `hidden beast` number, since 2 + 1 + 2 + 3 + 0 + 2 + 30 + 202 + 424 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21230230202429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49144051179 + ... + 49144051610.

Almost surely, 2^{21230230202424} is an apocalyptic number.

21230230202424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21230230202424 is an abundant number, since it is smaller than the sum of its proper divisors (37742631471576).

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

21230230202424 is a wasteful number, since it uses less digits than its factorization.

21230230202424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98288102804 (or 98288102794 counting only the distinct ones).

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

Adding to 21230230202424 its reverse (42420203203212), we get a palindrome (63650433405636).

The spelling of 21230230202424 in words is "twenty-one trillion, two hundred thirty billion, two hundred thirty million, two hundred two thousand, four hundred twenty-four".