20430003043100 has 36 divisors (see below), whose sum is σ = 50666407548624. Its totient is φ = 7004572471680.

The previous prime is 20430003043097. The next prime is 20430003043123. The reversal of 20430003043100 is 134030003402.

It is a super-2 number, since 2×20430003043100² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14592858617 + ... + 14592860016.

It is an arithmetic number, because the mean of its divisors is an integer number (1407400209684).

Almost surely, 2^{20430003043100} is an apocalyptic number.

20430003043100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20430003043100 is an abundant number, since it is smaller than the sum of its proper divisors (30236404505524).

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

20430003043100 is a wasteful number, since it uses less digits than its factorization.

20430003043100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29185718654 (or 29185718647 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20430003043100 its reverse (134030003402), we get a palindrome (20564033046502).

The spelling of 20430003043100 in words is "twenty trillion, four hundred thirty billion, three million, forty-three thousand, one hundred".