20132430434 has 8 divisors (see below), whose sum is σ = 30768431580. Its totient is φ = 9876286576.

The previous prime is 20132430427. The next prime is 20132430463. The reversal of 20132430434 is 43403423102.

It can be written as a sum of positive squares in 2 ways, for example, as 20078039809 + 54390625 = 141697^2 + 7375^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×20132430434³ (a number of 32 digits) contains 333 as substring.

It is a Curzon 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, 94964189 + ... + 94964400.

Almost surely, 2^20132430434 is an apocalyptic number.

20132430434 is a deficient number, since it is larger than the sum of its proper divisors (10636001146).

20132430434 is a wasteful number, since it uses less digits than its factorization.

20132430434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189928644.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 20132430434 its reverse (43403423102), we get a palindrome (63535853536).

The spelling of 20132430434 in words is "twenty billion, one hundred thirty-two million, four hundred thirty thousand, four hundred thirty-four".