20432203543234 has 16 divisors (see below), whose sum is σ = 35294013539136. Its totient is φ = 8689813938000.

The previous prime is 20432203543187. The next prime is 20432203543249. The reversal of 20432203543234 is 43234530223402.

It is a junction number, because it is equal to n+sod(n) for n = 20432203543193 and 20432203543202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5570391717 + ... + 5570395384.

It is an arithmetic number, because the mean of its divisors is an integer number (2205875846196).

Almost surely, 2^{20432203543234} is an apocalyptic number.

20432203543234 is a deficient number, since it is larger than the sum of its proper divisors (14861809995902).

20432203543234 is a wasteful number, since it uses less digits than its factorization.

20432203543234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11140787241.

The product of its (nonzero) digits is 414720, while the sum is 37.

Adding to 20432203543234 its reverse (43234530223402), we get a palindrome (63666733766636).

The spelling of 20432203543234 in words is "twenty trillion, four hundred thirty-two billion, two hundred three million, five hundred forty-three thousand, two hundred thirty-four".