20434204112 has 40 divisors (see below), whose sum is σ = 46807420800. Its totient is φ = 8455531392.

The previous prime is 20434204103. The next prime is 20434204183. The reversal of 20434204112 is 21140243402.

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, 3142412 + ... + 3148907.

It is an arithmetic number, because the mean of its divisors is an integer number (1170185520).

Almost surely, 2^20434204112 is an apocalyptic number.

It is an amenable number.

20434204112 is an abundant number, since it is smaller than the sum of its proper divisors (26373216688).

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

20434204112 is a wasteful number, since it uses less digits than its factorization.

20434204112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6291363 (or 6291357 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 20434204112 its reverse (21140243402), we get a palindrome (41574447514).

The spelling of 20434204112 in words is "twenty billion, four hundred thirty-four million, two hundred four thousand, one hundred twelve".