20230911 has 16 divisors (see below), whose sum is σ = 30136320. Its totient is φ = 13413240.

The previous prime is 20230883. The next prime is 20230919. The reversal of 20230911 is 11903202.

It is a happy number.

It is not a de Polignac number, because 20230911 - 2¹⁴ = 20214527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20230919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3196 + ... + 7118.

It is an arithmetic number, because the mean of its divisors is an integer number (1883520).

Almost surely, 2^20230911 is an apocalyptic number.

20230911 is a deficient number, since it is larger than the sum of its proper divisors (9905409).

20230911 is a wasteful number, since it uses less digits than its factorization.

20230911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4123 (or 4117 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 20230911 is about 4497.8784999153. The cubic root of 20230911 is about 272.4824150479.

It can be divided in two parts, 202 and 30911, that added together give a palindrome (31113).

The spelling of 20230911 in words is "twenty million, two hundred thirty thousand, nine hundred eleven".