20021434431030 has 48 divisors (see below), whose sum is σ = 53266327891920. Its totient is φ = 5214885246144.

The previous prime is 20021434431001. The next prime is 20021434431041. The reversal of 20021434431030 is 3013443412002.

20021434431030 is a `hidden beast` number, since 2 + 0 + 0 + 2 + 1 + 4 + 344 + 310 + 3 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 20021434430985 and 20021434431003.

It is a congruent number.

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, 2586744765 + ... + 2586752504.

It is an arithmetic number, because the mean of its divisors is an integer number (1109715164415).

Almost surely, 2^{20021434431030} is an apocalyptic number.

20021434431030 is an abundant number, since it is smaller than the sum of its proper divisors (33244893460890).

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

20021434431030 is a wasteful number, since it uses less digits than its factorization.

20021434431030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5173497325 (or 5173497322 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 20021434431030 its reverse (3013443412002), we get a palindrome (23034877843032).

The spelling of 20021434431030 in words is "twenty trillion, twenty-one billion, four hundred thirty-four million, four hundred thirty-one thousand, thirty".