20013132323 has 4 divisors (see below), whose sum is σ = 20044849488. Its totient is φ = 19981415160.

The previous prime is 20013132299. The next prime is 20013132367. The reversal of 20013132323 is 32323131002.

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

It is a cyclic number.

It is not a de Polignac number, because 20013132323 - 2⁶ = 20013132259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20013132295 and 20013132304.

It is not an unprimeable number, because it can be changed into a prime (20013132523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15857636 + ... + 15858897.

It is an arithmetic number, because the mean of its divisors is an integer number (5011212372).

Almost surely, 2^20013132323 is an apocalyptic number.

20013132323 is a deficient number, since it is larger than the sum of its proper divisors (31717165).

20013132323 is an equidigital number, since it uses as much as digits as its factorization.

20013132323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31717164.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20013132323 its reverse (32323131002), we get a palindrome (52336263325).

The spelling of 20013132323 in words is "twenty billion, thirteen million, one hundred thirty-two thousand, three hundred twenty-three".