2011260431 has 4 divisors (see below), whose sum is σ = 2013918072. Its totient is φ = 2008602792.

The previous prime is 2011260397. The next prime is 2011260443. The reversal of 2011260431 is 1340621102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2011260431 - 2⁶ = 2011260367 is a prime.

It is a super-2 number, since 2×2011260431² = 8090337042612611522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011260451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1327685 + ... + 1329198.

It is an arithmetic number, because the mean of its divisors is an integer number (503479518).

Almost surely, 2^2011260431 is an apocalyptic number.

2011260431 is a deficient number, since it is larger than the sum of its proper divisors (2657641).

2011260431 is an equidigital number, since it uses as much as digits as its factorization.

2011260431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2657640.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2011260431 is about 44847.0782883345. The cubic root of 2011260431 is about 1262.2811684371.

Adding to 2011260431 its reverse (1340621102), we get a palindrome (3351881533).

The spelling of 2011260431 in words is "two billion, eleven million, two hundred sixty thousand, four hundred thirty-one".