23213011 has 8 divisors (see below), whose sum is σ = 23882544. Its totient is φ = 22548480.

The previous prime is 23212999. The next prime is 23213033. The reversal of 23213011 is 11031232.

23213011 = T₂₉₀ + T₂₉₁ + ... + T₅₄₆.

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

It is a cyclic number.

It is not a de Polignac number, because 23213011 - 2⁵ = 23212979 is a prime.

It is a super-2 number, since 2×23213011² = 1077687759372242, 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 = 23212982 and 23213000.

It is not an unprimeable number, because it can be changed into a prime (23213711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9436 + ... + 11638.

It is an arithmetic number, because the mean of its divisors is an integer number (2985318).

Almost surely, 2^23213011 is an apocalyptic number.

23213011 is a deficient number, since it is larger than the sum of its proper divisors (669533).

23213011 is a wasteful number, since it uses less digits than its factorization.

23213011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2501.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 23213011 is about 4817.9882731281. The cubic root of 23213011 is about 285.2619362674.

Adding to 23213011 its reverse (11031232), we get a palindrome (34244243).

The spelling of 23213011 in words is "twenty-three million, two hundred thirteen thousand, eleven".