23112111121013 has 8 divisors (see below), whose sum is σ = 23564667555000. Its totient is φ = 22660165015488.

The previous prime is 23112111121009. The next prime is 23112111121027. The reversal of 23112111121013 is 31012111121132.

It can be written as a sum of positive squares in 4 ways, for example, as 2607860022769 + 20504251098244 = 1614887^2 + 4528162^2 .

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 23112111121013 - 2² = 23112111121009 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 (23112111121313) 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, 152505638 + ... + 152657111.

It is an arithmetic number, because the mean of its divisors is an integer number (2945583444375).

Almost surely, 2^{23112111121013} is an apocalyptic number.

It is an amenable number.

23112111121013 is a deficient number, since it is larger than the sum of its proper divisors (452556433987).

23112111121013 is a wasteful number, since it uses less digits than its factorization.

23112111121013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305164231.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 23112111121013 its reverse (31012111121132), we get a palindrome (54124222242145).

The spelling of 23112111121013 in words is "twenty-three trillion, one hundred twelve billion, one hundred eleven million, one hundred twenty-one thousand, thirteen".