20153323 has 2 divisors, whose sum is σ = 20153324. Its totient is φ = 20153322.

The previous prime is 20153321. The next prime is 20153339. The reversal of 20153323 is 32335102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20153323 - 2¹ = 20153321 is a prime.

Together with 20153321, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20153323.

It is not a weakly prime, because it can be changed into another prime (20153321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10076661 + 10076662.

It is an arithmetic number, because the mean of its divisors is an integer number (10076662).

Almost surely, 2^20153323 is an apocalyptic number.

20153323 is a deficient number, since it is larger than the sum of its proper divisors (1).

20153323 is an equidigital number, since it uses as much as digits as its factorization.

20153323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 20153323 is about 4489.2452595063. The cubic root of 20153323 is about 272.1336344136.

Adding to 20153323 its reverse (32335102), we get a palindrome (52488425).

The spelling of 20153323 in words is "twenty million, one hundred fifty-three thousand, three hundred twenty-three".