2131402441 has 12 divisors (see below), whose sum is σ = 2483109012. Its totient is φ = 1824173568.

The previous prime is 2131402397. The next prime is 2131402451. The reversal of 2131402441 is 1442041312.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 925924041 + 1205478400 = 30429^2 + 34720^2 .

It is not a de Polignac number, because 2131402441 - 2¹³ = 2131394249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131402451) 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, 661 + ... + 65293.

It is an arithmetic number, because the mean of its divisors is an integer number (206925751).

Almost surely, 2^2131402441 is an apocalyptic number.

It is an amenable number.

2131402441 is a deficient number, since it is larger than the sum of its proper divisors (351706571).

2131402441 is an equidigital number, since it uses as much as digits as its factorization.

2131402441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65320 (or 65313 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 2131402441 is about 46167.1142806219. The cubic root of 2131402441 is about 1286.9306755610.

Adding to 2131402441 its reverse (1442041312), we get a palindrome (3573443753).

The spelling of 2131402441 in words is "two billion, one hundred thirty-one million, four hundred two thousand, four hundred forty-one".