23211203123111 has 8 divisors (see below), whose sum is σ = 23246727081600. Its totient is φ = 23175680081400.

The previous prime is 23211203123107. The next prime is 23211203123131. The reversal of 23211203123111 is 11132130211232.

It is a happy number.

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 23211203123111 - 2² = 23211203123107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23211203123131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64322336 + ... + 64682186.

It is an arithmetic number, because the mean of its divisors is an integer number (2905840885200).

Almost surely, 2^{23211203123111} is an apocalyptic number.

23211203123111 is a deficient number, since it is larger than the sum of its proper divisors (35523958489).

23211203123111 is an equidigital number, since it uses as much as digits as its factorization.

23211203123111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458389.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 23211203123111 its reverse (11132130211232), we get a palindrome (34343333334343).

The spelling of 23211203123111 in words is "twenty-three trillion, two hundred eleven billion, two hundred three million, one hundred twenty-three thousand, one hundred eleven".