104121404242 has 16 divisors (see below), whose sum is σ = 156779413272. Its totient is φ = 51861680640.

The previous prime is 104121404201. The next prime is 104121404243. The reversal of 104121404242 is 242404121401.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 63025600401 + 41095803841 = 251049^2 + 202721^2 .

It is not an unprimeable number, because it can be changed into a prime (104121404243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2981442 + ... + 3016162.

Almost surely, 2^104121404242 is an apocalyptic number.

104121404242 is a deficient number, since it is larger than the sum of its proper divisors (52658009030).

104121404242 is a wasteful number, since it uses less digits than its factorization.

104121404242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40413.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 104121404242 its reverse (242404121401), we get a palindrome (346525525643).

The spelling of 104121404242 in words is "one hundred four billion, one hundred twenty-one million, four hundred four thousand, two hundred forty-two".