2043601291 has 2 divisors, whose sum is σ = 2043601292. Its totient is φ = 2043601290.

The previous prime is 2043601243. The next prime is 2043601303. The reversal of 2043601291 is 1921063402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2043601291 - 2¹⁵ = 2043568523 is a prime.

It is not a weakly prime, because it can be changed into another prime (2043602291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021800645 + 1021800646.

It is an arithmetic number, because the mean of its divisors is an integer number (1021800646).

Almost surely, 2^2043601291 is an apocalyptic number.

2043601291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2043601291 is an equidigital number, since it uses as much as digits as its factorization.

2043601291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 2043601291 is about 45206.2085448448. The cubic root of 2043601291 is about 1269.0110082022.

Adding to 2043601291 its reverse (1921063402), we get a palindrome (3964664693).

The spelling of 2043601291 in words is "two billion, forty-three million, six hundred one thousand, two hundred ninety-one".