2131404104 has 16 divisors (see below), whose sum is σ = 4231464300. Its totient is φ = 1003013632.

The previous prime is 2131404031. The next prime is 2131404127. The reversal of 2131404104 is 4014041312.

It can be written as a sum of positive squares in 2 ways, for example, as 2102222500 + 29181604 = 45850^2 + 5402^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7835909 + ... + 7836180.

Almost surely, 2^2131404104 is an apocalyptic number.

It is an amenable number.

2131404104 is a deficient number, since it is larger than the sum of its proper divisors (2100060196).

2131404104 is a wasteful number, since it uses less digits than its factorization.

2131404104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15672112 (or 15672108 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2131404104 is about 46167.1322912741. The cubic root of 2131404104 is about 1286.9310102647.

Adding to 2131404104 its reverse (4014041312), we get a palindrome (6145445416).

The spelling of 2131404104 in words is "two billion, one hundred thirty-one million, four hundred four thousand, one hundred four".