2011503051 has 20 divisors (see below), whose sum is σ = 3012609600. Its totient is φ = 1337533776.

The previous prime is 2011502993. The next prime is 2011503083. The reversal of 2011503051 is 1503051102.

It is not a de Polignac number, because 2011503051 - 2¹⁰ = 2011502027 is a prime.

It is a super-2 number, since 2×2011503051² = 8092289048364617202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2011503251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 411 + ... + 63428.

It is an arithmetic number, because the mean of its divisors is an integer number (150630480).

Almost surely, 2^2011503051 is an apocalyptic number.

2011503051 is a deficient number, since it is larger than the sum of its proper divisors (1001106549).

2011503051 is an equidigital number, since it uses as much as digits as its factorization.

2011503051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64240 (or 64231 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 2011503051 is about 44849.7831767334. The cubic root of 2011503051 is about 1262.3319230681.

Adding to 2011503051 its reverse (1503051102), we get a palindrome (3514554153).

The spelling of 2011503051 in words is "two billion, eleven million, five hundred three thousand, fifty-one".