23121022030111 has 4 divisors (see below), whose sum is σ = 23124785836032. Its totient is φ = 23117258224192.

The previous prime is 23121022030069. The next prime is 23121022030147. The reversal of 23121022030111 is 11103022012132.

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 23121022030111 - 2¹¹ = 23121022028063 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 (23121022037111) 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, 1881893746 + ... + 1881906031.

It is an arithmetic number, because the mean of its divisors is an integer number (5781196459008).

Almost surely, 2^{23121022030111} is an apocalyptic number.

23121022030111 is a deficient number, since it is larger than the sum of its proper divisors (3763805921).

23121022030111 is an equidigital number, since it uses as much as digits as its factorization.

23121022030111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3763805920.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 23121022030111 its reverse (11103022012132), we get a palindrome (34224044042243).

The spelling of 23121022030111 in words is "twenty-three trillion, one hundred twenty-one billion, twenty-two million, thirty thousand, one hundred eleven".