111535020413 has 2 divisors, whose sum is σ = 111535020414. Its totient is φ = 111535020412.

The previous prime is 111535020409. The next prime is 111535020449. The reversal of 111535020413 is 314020535111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97905158404 + 13629862009 = 312898^2 + 116747^2 .

It is a cyclic number.

It is not a de Polignac number, because 111535020413 - 2² = 111535020409 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111535020613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55767510206 + 55767510207.

It is an arithmetic number, because the mean of its divisors is an integer number (55767510207).

Almost surely, 2^111535020413 is an apocalyptic number.

It is an amenable number.

111535020413 is a deficient number, since it is larger than the sum of its proper divisors (1).

111535020413 is an equidigital number, since it uses as much as digits as its factorization.

111535020413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 111535020413 its reverse (314020535111), we get a palindrome (425555555524).

The spelling of 111535020413 in words is "one hundred eleven billion, five hundred thirty-five million, twenty thousand, four hundred thirteen".