104561311 has 4 divisors (see below), whose sum is σ = 104581800. Its totient is φ = 104540824.

The previous prime is 104561299. The next prime is 104561321. The reversal of 104561311 is 113165401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113165401 = 2143 ⋅52807.

It is a cyclic number.

It is not a de Polignac number, because 104561311 - 2⁵ = 104561279 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 (104561321) 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, 4200 + ... + 15058.

It is an arithmetic number, because the mean of its divisors is an integer number (26145450).

Almost surely, 2^104561311 is an apocalyptic number.

104561311 is a deficient number, since it is larger than the sum of its proper divisors (20489).

104561311 is an equidigital number, since it uses as much as digits as its factorization.

104561311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20488.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 104561311 is about 10225.5225294358. The cubic root of 104561311 is about 471.1114648824. Note that the first 3 decimals are identical.

The spelling of 104561311 in words is "one hundred four million, five hundred sixty-one thousand, three hundred eleven".