13112301121 has 2 divisors, whose sum is σ = 13112301122. Its totient is φ = 13112301120.

The previous prime is 13112301113. The next prime is 13112301149. The reversal of 13112301121 is 12110321131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8753660721 + 4358640400 = 93561^2 + 66020^2 .

It is a cyclic number.

It is not a de Polignac number, because 13112301121 - 2³ = 13112301113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13112301095 and 13112301104.

It is not a weakly prime, because it can be changed into another prime (13112301221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6556150560 + 6556150561.

It is an arithmetic number, because the mean of its divisors is an integer number (6556150561).

Almost surely, 2^13112301121 is an apocalyptic number.

It is an amenable number.

13112301121 is a deficient number, since it is larger than the sum of its proper divisors (1).

13112301121 is an equidigital number, since it uses as much as digits as its factorization.

13112301121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 13112301121 its reverse (12110321131), we get a palindrome (25222622252).

The spelling of 13112301121 in words is "thirteen billion, one hundred twelve million, three hundred one thousand, one hundred twenty-one".