1105551100511 has 16 divisors (see below), whose sum is σ = 1300836837888. Its totient is φ = 926301208800.

The previous prime is 1105551100499. The next prime is 1105551100529. The reversal of 1105551100511 is 1150011555011.

It is not a de Polignac number, because 1105551100511 - 2⁶ = 1105551100447 is a prime.

It is a super-2 number, since 2×1105551100511² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105551100541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5882075 + ... + 6067116.

It is an arithmetic number, because the mean of its divisors is an integer number (81302302368).

Almost surely, 2^{1105551100511} is an apocalyptic number.

1105551100511 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1105551100511 is a deficient number, since it is larger than the sum of its proper divisors (195285737377).

1105551100511 is a wasteful number, since it uses less digits than its factorization.

1105551100511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11949862.

The product of its (nonzero) digits is 625, while the sum is 26.

Adding to 1105551100511 its reverse (1150011555011), we get a palindrome (2255562655522).

The spelling of 1105551100511 in words is "one trillion, one hundred five billion, five hundred fifty-one million, one hundred thousand, five hundred eleven".