104121243 has 12 divisors (see below), whose sum is σ = 159244488. Its totient is φ = 65330880.

The previous prime is 104121239. The next prime is 104121247. The reversal of 104121243 is 342121401.

104121243 is a `hidden beast` number, since 10 + 412 + 1 + 243 = 666.

It is an interprime number because it is at equal distance from previous prime (104121239) and next prime (104121247).

It is not a de Polignac number, because 104121243 - 2² = 104121239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (104121247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340113 + ... + 340418.

It is an arithmetic number, because the mean of its divisors is an integer number (13270374).

Almost surely, 2^104121243 is an apocalyptic number.

104121243 is a deficient number, since it is larger than the sum of its proper divisors (55123245).

104121243 is a wasteful number, since it uses less digits than its factorization.

104121243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680554 (or 680551 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 104121243 is about 10203.9817228374. The cubic root of 104121243 is about 470.4496120058.

Adding to 104121243 its reverse (342121401), we get a palindrome (446242644).

The spelling of 104121243 in words is "one hundred four million, one hundred twenty-one thousand, two hundred forty-three".