23122312213111 has 4 divisors (see below), whose sum is σ = 23187814514352. Its totient is φ = 23056809911872.

The previous prime is 23122312213109. The next prime is 23122312213139. The reversal of 23122312213111 is 11131221322132.

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 23122312213111 - 2¹ = 23122312213109 is a prime.

It is a super-2 number, since 2×23122312213111² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23122312213411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32751150091 + ... + 32751150796.

It is an arithmetic number, because the mean of its divisors is an integer number (5796953628588).

Almost surely, 2^{23122312213111} is an apocalyptic number.

23122312213111 is a deficient number, since it is larger than the sum of its proper divisors (65502301241).

23122312213111 is an equidigital number, since it uses as much as digits as its factorization.

23122312213111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65502301240.

The product of its digits is 864, while the sum is 25.

Adding to 23122312213111 its reverse (11131221322132), we get a palindrome (34253533535243).

The spelling of 23122312213111 in words is "twenty-three trillion, one hundred twenty-two billion, three hundred twelve million, two hundred thirteen thousand, one hundred eleven".