23211013 has 16 divisors (see below), whose sum is σ = 27624960. Its totient is φ = 19088496.

The previous prime is 23210987. The next prime is 23211029. The reversal of 23211013 is 31011232.

It is not a de Polignac number, because 23211013 - 2⁵ = 23210981 is a prime.

It is a super-2 number, since 2×23211013² = 1077502248972338, 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 = 23210984 and 23211002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23211053) 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, 17106 + ... + 18412.

It is an arithmetic number, because the mean of its divisors is an integer number (1726560).

Almost surely, 2^23211013 is an apocalyptic number.

It is an amenable number.

23211013 is a deficient number, since it is larger than the sum of its proper divisors (4413947).

23211013 is a wasteful number, since it uses less digits than its factorization.

23211013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416.

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

The square root of 23211013 is about 4817.7809207144. The cubic root of 23211013 is about 285.2537516376.

Adding to 23211013 its reverse (31011232), we get a palindrome (54222245).

The spelling of 23211013 in words is "twenty-three million, two hundred eleven thousand, thirteen".