23101021312211 has 4 divisors (see below), whose sum is σ = 23117187178800. Its totient is φ = 23084855445624.

The previous prime is 23101021312207. The next prime is 23101021312253. The reversal of 23101021312211 is 11221312010132.

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 23101021312211 - 2² = 23101021312207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23101021312261) 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, 8082931151 + ... + 8082934008.

It is an arithmetic number, because the mean of its divisors is an integer number (5779296794700).

Almost surely, 2^{23101021312211} is an apocalyptic number.

23101021312211 is a deficient number, since it is larger than the sum of its proper divisors (16165866589).

23101021312211 is a wasteful number, since it uses less digits than its factorization.

23101021312211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16165866588.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 23101021312211 its reverse (11221312010132), we get a palindrome (34322333322343).

The spelling of 23101021312211 in words is "twenty-three trillion, one hundred one billion, twenty-one million, three hundred twelve thousand, two hundred eleven".