20334430234 has 4 divisors (see below), whose sum is σ = 30501645354. Its totient is φ = 10167215116.

The previous prime is 20334430219. The next prime is 20334430267. The reversal of 20334430234 is 43203443302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20333334025 + 1096209 = 142595^2 + 1047^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5083607557 + ... + 5083607560.

Almost surely, 2^20334430234 is an apocalyptic number.

20334430234 is a deficient number, since it is larger than the sum of its proper divisors (10167215120).

20334430234 is a wasteful number, since it uses less digits than its factorization.

20334430234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10167215119.

The product of its (nonzero) digits is 20736, while the sum is 28.

Adding to 20334430234 its reverse (43203443302), we get a palindrome (63537873536).

The spelling of 20334430234 in words is "twenty billion, three hundred thirty-four million, four hundred thirty thousand, two hundred thirty-four".