111210111013 has 2 divisors, whose sum is σ = 111210111014. Its totient is φ = 111210111012.

The previous prime is 111210111011. The next prime is 111210111071. The reversal of 111210111013 is 310111012111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85320657409 + 25889453604 = 292097^2 + 160902^2 .

It is a cyclic number.

It is not a de Polignac number, because 111210111013 - 2¹ = 111210111011 is a prime.

Together with 111210111011, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 111210110984 and 111210111002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111210111011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55605055506 + 55605055507.

It is an arithmetic number, because the mean of its divisors is an integer number (55605055507).

Almost surely, 2^111210111013 is an apocalyptic number.

It is an amenable number.

111210111013 is a deficient number, since it is larger than the sum of its proper divisors (1).

111210111013 is an equidigital number, since it uses as much as digits as its factorization.

111210111013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 111210111013 its reverse (310111012111), we get a palindrome (421321123124).

The spelling of 111210111013 in words is "one hundred eleven billion, two hundred ten million, one hundred eleven thousand, thirteen".