2104402131 has 12 divisors (see below), whose sum is σ = 3273514608. Its totient is φ = 1295016624.

The previous prime is 2104402123. The next prime is 2104402151. The reversal of 2104402131 is 1312044012.

2104402131 is a `hidden beast` number, since 2 + 10 + 440 + 213 + 1 = 666.

It is not a de Polignac number, because 2104402131 - 2³ = 2104402123 is a prime.

It is a super-2 number, since 2×2104402131² = 8857016657914682322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2104402151) 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, 8993055 + ... + 8993288.

It is an arithmetic number, because the mean of its divisors is an integer number (272792884).

Almost surely, 2^2104402131 is an apocalyptic number.

2104402131 is a deficient number, since it is larger than the sum of its proper divisors (1169112477).

2104402131 is a wasteful number, since it uses less digits than its factorization.

2104402131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17986362 (or 17986359 counting only the distinct ones).

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

The square root of 2104402131 is about 45873.7629914966. The cubic root of 2104402131 is about 1281.4733463793.

Adding to 2104402131 its reverse (1312044012), we get a palindrome (3416446143).

The spelling of 2104402131 in words is "two billion, one hundred four million, four hundred two thousand, one hundred thirty-one".