111528538797101 has 2 divisors, whose sum is σ = 111528538797102. Its totient is φ = 111528538797100.

The previous prime is 111528538797047. The next prime is 111528538797127. The reversal of 111528538797101 is 101797835825111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65242355271076 + 46286183526025 = 8077274^2 + 6803395^2 .

It is a cyclic number.

It is not a de Polignac number, because 111528538797101 - 2³⁰ = 111527465055277 is a prime.

It is a super-2 number, since 2×111528538797101² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111528538797131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55764269398550 + 55764269398551.

It is an arithmetic number, because the mean of its divisors is an integer number (55764269398551).

Almost surely, 2^{111528538797101} is an apocalyptic number.

It is an amenable number.

111528538797101 is a deficient number, since it is larger than the sum of its proper divisors (1).

111528538797101 is an equidigital number, since it uses as much as digits as its factorization.

111528538797101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4233600, while the sum is 59.

The spelling of 111528538797101 in words is "one hundred eleven trillion, five hundred twenty-eight billion, five hundred thirty-eight million, seven hundred ninety-seven thousand, one hundred one".