20343233434 has 8 divisors (see below), whose sum is σ = 30882499200. Its totient is φ = 10049067036.

The previous prime is 20343233431. The next prime is 20343233501. The reversal of 20343233434 is 43433234302.

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

It is a junction number, because it is equal to n+sod(n) for n = 20343233396 and 20343233405.

It is not an unprimeable number, because it can be changed into a prime (20343233431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61274634 + ... + 61274965.

It is an arithmetic number, because the mean of its divisors is an integer number (3860312400).

Almost surely, 2^20343233434 is an apocalyptic number.

20343233434 is a deficient number, since it is larger than the sum of its proper divisors (10539265766).

20343233434 is a wasteful number, since it uses less digits than its factorization.

20343233434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122549684.

The product of its (nonzero) digits is 62208, while the sum is 31.

Adding to 20343233434 its reverse (43433234302), we get a palindrome (63776467736).

The spelling of 20343233434 in words is "twenty billion, three hundred forty-three million, two hundred thirty-three thousand, four hundred thirty-four".