20403134330 has 16 divisors (see below), whose sum is σ = 36802321920. Its totient is φ = 8144213712.

The previous prime is 20403134291. The next prime is 20403134333. The reversal of 20403134330 is 3343130402.

20403134330 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20403134296 and 20403134305.

It is not an unprimeable number, because it can be changed into a prime (20403134333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2124974 + ... + 2134553.

It is an arithmetic number, because the mean of its divisors is an integer number (2300145120).

Almost surely, 2^20403134330 is an apocalyptic number.

20403134330 is a deficient number, since it is larger than the sum of its proper divisors (16399187590).

20403134330 is a wasteful number, since it uses less digits than its factorization.

20403134330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4260013.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 20403134330 its reverse (3343130402), we get a palindrome (23746264732).

The spelling of 20403134330 in words is "twenty billion, four hundred three million, one hundred thirty-four thousand, three hundred thirty".