103611661101 has 24 divisors (see below), whose sum is σ = 163579284960. Its totient is φ = 62809360416.

The previous prime is 103611661093. The next prime is 103611661117. The reversal of 103611661101 is 101166116301.

103611661101 is a `hidden beast` number, since 1 + 0 + 36 + 1 + 16 + 611 + 0 + 1 = 666.

It is not a de Polignac number, because 103611661101 - 2³ = 103611661093 is a prime.

It is a super-3 number, since 3×103611661101³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103611668101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6600891 + ... + 6616568.

It is an arithmetic number, because the mean of its divisors is an integer number (6815803540).

Almost surely, 2^103611661101 is an apocalyptic number.

It is an amenable number.

103611661101 is a deficient number, since it is larger than the sum of its proper divisors (59967623859).

103611661101 is a wasteful number, since it uses less digits than its factorization.

103611661101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13217545 (or 13217542 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

Adding to 103611661101 its reverse (101166116301), we get a palindrome (204777777402).

The spelling of 103611661101 in words is "one hundred three billion, six hundred eleven million, six hundred sixty-one thousand, one hundred one".