20152323 has 6 divisors (see below), whose sum is σ = 29108924. Its totient is φ = 13434876.

The previous prime is 20152313. The next prime is 20152333. The reversal of 20152323 is 32325102.

It is an interprime number because it is at equal distance from previous prime (20152313) and next prime (20152333).

It is not a de Polignac number, because 20152323 - 2⁵ = 20152291 is a prime.

It is a super-2 number, since 2×20152323² = 812232244592658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20152296 and 20152305.

It is not an unprimeable number, because it can be changed into a prime (20152313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1119565 + ... + 1119582.

Almost surely, 2^20152323 is an apocalyptic number.

20152323 is a deficient number, since it is larger than the sum of its proper divisors (8956601).

20152323 is a wasteful number, since it uses less digits than its factorization.

20152323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2239153 (or 2239150 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 20152323 is about 4489.1338808282. The cubic root of 20152323 is about 272.1291332843.

Adding to 20152323 its reverse (32325102), we get a palindrome (52477425).

The spelling of 20152323 in words is "twenty million, one hundred fifty-two thousand, three hundred twenty-three".