20032331434 has 4 divisors (see below), whose sum is σ = 30048497154. Its totient is φ = 10016165716.

The previous prime is 20032331393. The next prime is 20032331437. The reversal of 20032331434 is 43413323002.

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., 15563810025 + 4468521409 = 124755^2 + 66847^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20032331399 and 20032331408.

It is not an unprimeable number, because it can be changed into a prime (20032331437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5008082857 + ... + 5008082860.

Almost surely, 2^20032331434 is an apocalyptic number.

20032331434 is a deficient number, since it is larger than the sum of its proper divisors (10016165720).

20032331434 is a wasteful number, since it uses less digits than its factorization.

20032331434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10016165719.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 20032331434 its reverse (43413323002), we get a palindrome (63445654436).

The spelling of 20032331434 in words is "twenty billion, thirty-two million, three hundred thirty-one thousand, four hundred thirty-four".