20430120102 has 16 divisors (see below), whose sum is σ = 46697417472. Its totient is φ = 5837177160.

The previous prime is 20430120097. The next prime is 20430120149. The reversal of 20430120102 is 20102103402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243215674 + ... + 243215757.

It is an arithmetic number, because the mean of its divisors is an integer number (2918588592).

Almost surely, 2^20430120102 is an apocalyptic number.

20430120102 is an abundant number, since it is smaller than the sum of its proper divisors (26267297370).

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

20430120102 is a wasteful number, since it uses less digits than its factorization.

20430120102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486431443.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20430120102 its reverse (20102103402), we get a palindrome (40532223504).

The spelling of 20430120102 in words is "twenty billion, four hundred thirty million, one hundred twenty thousand, one hundred two".