20102434104 has 16 divisors (see below), whose sum is σ = 50256085320. Its totient is φ = 6700811360.

The previous prime is 20102434103. The next prime is 20102434139. The reversal of 20102434104 is 40143420102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102434103) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 418800687 + ... + 418800734.

Almost surely, 2^20102434104 is an apocalyptic number.

20102434104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20102434104 is an abundant number, since it is smaller than the sum of its proper divisors (30153651216).

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

20102434104 is a wasteful number, since it uses less digits than its factorization.

20102434104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837601430 (or 837601426 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20102434104 its reverse (40143420102), we get a palindrome (60245854206).

The spelling of 20102434104 in words is "twenty billion, one hundred two million, four hundred thirty-four thousand, one hundred four".