20434130232 has 16 divisors (see below), whose sum is σ = 51085325640. Its totient is φ = 6811376736.

The previous prime is 20434130177. The next prime is 20434130291. The reversal of 20434130232 is 23203143402.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 851422093 = 20434130232 / (2 + 0 + 4 + 3 + 4 + 1 + 3 + 0 + 2 + 3 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425711023 + ... + 425711070.

Almost surely, 2^20434130232 is an apocalyptic number.

It is an amenable number.

20434130232 is an abundant number, since it is smaller than the sum of its proper divisors (30651195408).

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

20434130232 is a wasteful number, since it uses less digits than its factorization.

20434130232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851422102 (or 851422098 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20434130232 its reverse (23203143402), we get a palindrome (43637273634).

The spelling of 20434130232 in words is "twenty billion, four hundred thirty-four million, one hundred thirty thousand, two hundred thirty-two".