1011100505601 has 8 divisors (see below), whose sum is σ = 1348150416480. Its totient is φ = 674058799232.

The previous prime is 1011100505587. The next prime is 1011100505651. The reversal of 1011100505601 is 1065050011101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1011100505601 - 2¹⁰ = 1011100504577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011100505651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1757571 + ... + 2260808.

It is an arithmetic number, because the mean of its divisors is an integer number (168518802060).

Almost surely, 2^{1011100505601} is an apocalyptic number.

It is an amenable number.

1011100505601 is a deficient number, since it is larger than the sum of its proper divisors (337049910879).

1011100505601 is an equidigital number, since it uses as much as digits as its factorization.

1011100505601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4102255.

The product of its (nonzero) digits is 150, while the sum is 21.

Adding to 1011100505601 its reverse (1065050011101), we get a palindrome (2076150516702).

The spelling of 1011100505601 in words is "one trillion, eleven billion, one hundred million, five hundred five thousand, six hundred one".