20111232323 has 16 divisors (see below), whose sum is σ = 24759833280. Its totient is φ = 15907332096.

The previous prime is 20111232293. The next prime is 20111232329. The reversal of 20111232323 is 32323211102.

It is a cyclic number.

It is not a de Polignac number, because 20111232323 - 2¹² = 20111228227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20111232295 and 20111232304.

It is not an unprimeable number, because it can be changed into a prime (20111232329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282623 + ... + 346551.

It is an arithmetic number, because the mean of its divisors is an integer number (1547489580).

Almost surely, 2^20111232323 is an apocalyptic number.

20111232323 is a deficient number, since it is larger than the sum of its proper divisors (4648600957).

20111232323 is a wasteful number, since it uses less digits than its factorization.

20111232323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67406.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20111232323 its reverse (32323211102), we get a palindrome (52434443425).

The spelling of 20111232323 in words is "twenty billion, one hundred eleven million, two hundred thirty-two thousand, three hundred twenty-three".