23201212101 has 4 divisors (see below), whose sum is σ = 30934949472. Its totient is φ = 15467474732.

The previous prime is 23201212087. The next prime is 23201212109. The reversal of 23201212101 is 10121210232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23201212101 - 2¹⁸ = 23200949957 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23201212109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3866868681 + ... + 3866868686.

It is an arithmetic number, because the mean of its divisors is an integer number (7733737368).

Almost surely, 2^23201212101 is an apocalyptic number.

It is an amenable number.

23201212101 is a deficient number, since it is larger than the sum of its proper divisors (7733737371).

23201212101 is an equidigital number, since it uses as much as digits as its factorization.

23201212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7733737370.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 23201212101 its reverse (10121210232), we get a palindrome (33322422333).

The spelling of 23201212101 in words is "twenty-three billion, two hundred one million, two hundred twelve thousand, one hundred one".