20323323 has 12 divisors (see below), whose sum is σ = 30149808. Its totient is φ = 13182480.

The previous prime is 20323291. The next prime is 20323333. The reversal of 20323323 is 32332302.

20323323 is a `hidden beast` number, since 20 + 323 + 323 = 666.

It is not a de Polignac number, because 20323323 - 2⁵ = 20323291 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20323296 and 20323305.

It is not an unprimeable number, because it can be changed into a prime (20323333) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30183 + ... + 30848.

It is an arithmetic number, because the mean of its divisors is an integer number (2512484).

Almost surely, 2^20323323 is an apocalyptic number.

20323323 is a deficient number, since it is larger than the sum of its proper divisors (9826485).

20323323 is a wasteful number, since it uses less digits than its factorization.

20323323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61074 (or 61071 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 18.

The square root of 20323323 is about 4508.1396384762. The cubic root of 20323323 is about 272.8966722437.

Adding to 20323323 its reverse (32332302), we get a palindrome (52655625).

The spelling of 20323323 in words is "twenty million, three hundred twenty-three thousand, three hundred twenty-three".