111001050055501 has 2 divisors, whose sum is σ = 111001050055502. Its totient is φ = 111001050055500.

The previous prime is 111001050055451. The next prime is 111001050055531. The reversal of 111001050055501 is 105550050100111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70639805753001 + 40361244302500 = 8404749^2 + 6353050^2 .

It is a cyclic number.

It is not a de Polignac number, because 111001050055501 - 2³⁷ = 110863611102029 is a prime.

It is a super-2 number, since 2×111001050055501² (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 (111001050055531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55500525027750 + 55500525027751.

It is an arithmetic number, because the mean of its divisors is an integer number (55500525027751).

Almost surely, 2^{111001050055501} is an apocalyptic number.

It is an amenable number.

111001050055501 is a deficient number, since it is larger than the sum of its proper divisors (1).

111001050055501 is an equidigital number, since it uses as much as digits as its factorization.

111001050055501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 625, while the sum is 25.

The spelling of 111001050055501 in words is "one hundred eleven trillion, one billion, fifty million, fifty-five thousand, five hundred one".