20323011 has 8 divisors (see below), whose sum is σ = 27971584. Its totient is φ = 13111560.

The previous prime is 20322983. The next prime is 20323013. The reversal of 20323011 is 11032302.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20323011 - 2⁵ = 20322979 is a prime.

It is a super-2 number, since 2×20323011² = 826049552212242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20323013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109171 + ... + 109356.

It is an arithmetic number, because the mean of its divisors is an integer number (3496448).

Almost surely, 2^20323011 is an apocalyptic number.

20323011 is a deficient number, since it is larger than the sum of its proper divisors (7648573).

20323011 is a wasteful number, since it uses less digits than its factorization.

20323011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218561.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 20323011 is about 4508.1050342688. The cubic root of 20323011 is about 272.8952757497.

Adding to 20323011 its reverse (11032302), we get a palindrome (31355313).

It can be divided in two parts, 2032301 and 1, that added together give a palindrome (2032302).

The spelling of 20323011 in words is "twenty million, three hundred twenty-three thousand, eleven".