1109801258061 has 4 divisors (see below), whose sum is σ = 1479735010752. Its totient is φ = 739867505372.

The previous prime is 1109801258009. The next prime is 1109801258063. The reversal of 1109801258061 is 1608521089011.

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 1109801258061 - 2¹⁹ = 1109800733773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109801258063) 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, 184966876341 + ... + 184966876346.

It is an arithmetic number, because the mean of its divisors is an integer number (369933752688).

Almost surely, 2^{1109801258061} is an apocalyptic number.

It is an amenable number.

1109801258061 is a deficient number, since it is larger than the sum of its proper divisors (369933752691).

1109801258061 is an equidigital number, since it uses as much as digits as its factorization.

1109801258061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369933752690.

The product of its (nonzero) digits is 34560, while the sum is 42.

The spelling of 1109801258061 in words is "one trillion, one hundred nine billion, eight hundred one million, two hundred fifty-eight thousand, sixty-one".