210111100013 has 2 divisors, whose sum is σ = 210111100014. Its totient is φ = 210111100012.

The previous prime is 210111099967. The next prime is 210111100027. The reversal of 210111100013 is 310001111012.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184484853289 + 25626246724 = 429517^2 + 160082^2 .

It is a cyclic number.

It is not a de Polignac number, because 210111100013 - 2¹² = 210111095917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210111099967 and 210111100003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210111100813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105055550006 + 105055550007.

It is an arithmetic number, because the mean of its divisors is an integer number (105055550007).

Almost surely, 2^210111100013 is an apocalyptic number.

It is an amenable number.

210111100013 is a deficient number, since it is larger than the sum of its proper divisors (1).

210111100013 is an equidigital number, since it uses as much as digits as its factorization.

210111100013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 210111100013 its reverse (310001111012), we get a palindrome (520112211025).

The spelling of 210111100013 in words is "two hundred ten billion, one hundred eleven million, one hundred thousand, thirteen".