1109660101 has 4 divisors (see below), whose sum is σ = 1210538304. Its totient is φ = 1008781900.

The previous prime is 1109660029. The next prime is 1109660119. The reversal of 1109660101 is 1010669011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1109660101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109660131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50439085 + ... + 50439106.

It is an arithmetic number, because the mean of its divisors is an integer number (302634576).

Almost surely, 2^1109660101 is an apocalyptic number.

1109660101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1109660101 is a deficient number, since it is larger than the sum of its proper divisors (100878203).

1109660101 is a wasteful number, since it uses less digits than its factorization.

1109660101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100878202.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 1109660101 is about 33311.5610711957. The cubic root of 1109660101 is about 1035.2931096686.

The spelling of 1109660101 in words is "one billion, one hundred nine million, six hundred sixty thousand, one hundred one".