104723121 has 4 divisors (see below), whose sum is σ = 139630832. Its totient is φ = 69815412.

The previous prime is 104723093. The next prime is 104723137. The reversal of 104723121 is 121327401.

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 not a de Polignac number, because 104723121 - 2¹¹ = 104721073 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (104733121) 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, 17453851 + ... + 17453856.

It is an arithmetic number, because the mean of its divisors is an integer number (34907708).

Almost surely, 2^104723121 is an apocalyptic number.

It is an amenable number.

104723121 is a deficient number, since it is larger than the sum of its proper divisors (34907711).

104723121 is an equidigital number, since it uses as much as digits as its factorization.

104723121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34907710.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 104723121 is about 10233.4315359023. The cubic root of 104723121 is about 471.3543566894.

The spelling of 104723121 in words is "one hundred four million, seven hundred twenty-three thousand, one hundred twenty-one".