111012001021213 has 2 divisors, whose sum is σ = 111012001021214. Its totient is φ = 111012001021212.

The previous prime is 111012001021133. The next prime is 111012001021223. The reversal of 111012001021213 is 312120100210111.

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., 75870319067449 + 35141681953764 = 8710357^2 + 5928042^2 .

It is a cyclic number.

It is not a de Polignac number, because 111012001021213 - 2¹³ = 111012001013021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111012001021223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55506000510606 + 55506000510607.

It is an arithmetic number, because the mean of its divisors is an integer number (55506000510607).

Almost surely, 2^{111012001021213} is an apocalyptic number.

It is an amenable number.

111012001021213 is a deficient number, since it is larger than the sum of its proper divisors (1).

111012001021213 is an equidigital number, since it uses as much as digits as its factorization.

111012001021213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 111012001021213 its reverse (312120100210111), we get a palindrome (423132101231324).

The spelling of 111012001021213 in words is "one hundred eleven trillion, twelve billion, one million, twenty-one thousand, two hundred thirteen".