10023211111 has 4 divisors (see below), whose sum is σ = 10023411672. Its totient is φ = 10023010552.

The previous prime is 10023211097. The next prime is 10023211141. The reversal of 10023211111 is 11111232001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10023211111 - 2⁹ = 10023210599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10023211091 and 10023211100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10023211141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41541 + ... + 147553.

It is an arithmetic number, because the mean of its divisors is an integer number (2505852918).

Almost surely, 2^10023211111 is an apocalyptic number.

10023211111 is a deficient number, since it is larger than the sum of its proper divisors (200561).

10023211111 is an equidigital number, since it uses as much as digits as its factorization.

10023211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200560.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 10023211111 its reverse (11111232001), we get a palindrome (21134443112).

The spelling of 10023211111 in words is "ten billion, twenty-three million, two hundred eleven thousand, one hundred eleven".