1100111050501 has 2 divisors, whose sum is σ = 1100111050502. Its totient is φ = 1100111050500.

The previous prime is 1100111050499. The next prime is 1100111050547. The reversal of 1100111050501 is 1050501110011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 559577306401 + 540533744100 = 748049^2 + 735210^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100111050501 - 2¹ = 1100111050499 is a prime.

Together with 1100111050499, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100111050901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550055525250 + 550055525251.

It is an arithmetic number, because the mean of its divisors is an integer number (550055525251).

Almost surely, 2^{1100111050501} is an apocalyptic number.

It is an amenable number.

1100111050501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100111050501 is an equidigital number, since it uses as much as digits as its factorization.

1100111050501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25, while the sum is 16.

Adding to 1100111050501 its reverse (1050501110011), we get a palindrome (2150612160512).

It can be divided in two parts, 110011 and 1050501, that multiplied together give a palindrome (115566665511).

The spelling of 1100111050501 in words is "one trillion, one hundred billion, one hundred eleven million, fifty thousand, five hundred one".