23011331 has 12 divisors (see below), whose sum is σ = 27633600. Its totient is φ = 19086480.

The previous prime is 23011301. The next prime is 23011361. The reversal of 23011331 is 13311032.

It is an interprime number because it is at equal distance from previous prime (23011301) and next prime (23011361).

It is not a de Polignac number, because 23011331 - 2¹⁴ = 22994947 is a prime.

It is a super-3 number, since 3×23011331³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23011301) 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, 6056 + ... + 9093.

It is an arithmetic number, because the mean of its divisors is an integer number (2302800).

Almost surely, 2^23011331 is an apocalyptic number.

23011331 is a deficient number, since it is larger than the sum of its proper divisors (4622269).

23011331 is a wasteful number, since it uses less digits than its factorization.

23011331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15194 (or 15187 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 23011331 is about 4797.0127162642. The cubic root of 23011331 is about 284.4333915598.

Adding to 23011331 its reverse (13311032), we get a palindrome (36322363).

The spelling of 23011331 in words is "twenty-three million, eleven thousand, three hundred thirty-one".