1109812601 has 4 divisors (see below), whose sum is σ = 1110681600. Its totient is φ = 1108943604.

The previous prime is 1109812579. The next prime is 1109812631. The reversal of 1109812601 is 1062189011.

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 not a de Polignac number, because 1109812601 - 2²⁶ = 1042703737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1109812631) 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, 432581 + ... + 435138.

It is an arithmetic number, because the mean of its divisors is an integer number (277670400).

Almost surely, 2^1109812601 is an apocalyptic number.

It is an amenable number.

1109812601 is a deficient number, since it is larger than the sum of its proper divisors (868999).

1109812601 is an equidigital number, since it uses as much as digits as its factorization.

1109812601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868998.

The product of its (nonzero) digits is 864, while the sum is 29.

The square root of 1109812601 is about 33313.8499876553. The cubic root of 1109812601 is about 1035.3405340907.

The spelling of 1109812601 in words is "one billion, one hundred nine million, eight hundred twelve thousand, six hundred one".