2011431045 has 16 divisors (see below), whose sum is σ = 3465850752. Its totient is φ = 990242880.

The previous prime is 2011431031. The next prime is 2011431073. The reversal of 2011431045 is 5401341102.

It is not a de Polignac number, because 2011431045 - 2⁷ = 2011430917 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5157321 + ... + 5157710.

It is an arithmetic number, because the mean of its divisors is an integer number (216615672).

Almost surely, 2^2011431045 is an apocalyptic number.

It is an amenable number.

2011431045 is a deficient number, since it is larger than the sum of its proper divisors (1454419707).

2011431045 is a wasteful number, since it uses less digits than its factorization.

2011431045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10315052.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2011431045 is about 44848.9804231936. The cubic root of 2011431045 is about 1262.3168602760.

Adding to 2011431045 its reverse (5401341102), we get a palindrome (7412772147).

The spelling of 2011431045 in words is "two billion, eleven million, four hundred thirty-one thousand, forty-five".