2105441531 has 2 divisors, whose sum is σ = 2105441532. Its totient is φ = 2105441530.

The previous prime is 2105441521. The next prime is 2105441549. The reversal of 2105441531 is 1351445012.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2105441531 is a prime.

It is a super-2 number, since 2×2105441531² = 8865768080919247922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2105441531.

It is not a weakly prime, because it can be changed into another prime (2105441521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052720765 + 1052720766.

It is an arithmetic number, because the mean of its divisors is an integer number (1052720766).

Almost surely, 2^2105441531 is an apocalyptic number.

2105441531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105441531 is an equidigital number, since it uses as much as digits as its factorization.

2105441531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 2105441531 is about 45885.0905087916. The cubic root of 2105441531 is about 1281.6842921460.

Adding to 2105441531 its reverse (1351445012), we get a palindrome (3456886543).

The spelling of 2105441531 in words is "two billion, one hundred five million, four hundred forty-one thousand, five hundred thirty-one".