2511213803 has 48 divisors (see below), whose sum is σ = 3169699776. Its totient is φ = 1941811200.

The previous prime is 2511213781. The next prime is 2511213811. The reversal of 2511213803 is 3083121152.

It is not a de Polignac number, because 2511213803 - 2⁶ = 2511213739 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2511213833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22223075 + ... + 22223187.

It is an arithmetic number, because the mean of its divisors is an integer number (66035412).

Almost surely, 2^2511213803 is an apocalyptic number.

2511213803 is a deficient number, since it is larger than the sum of its proper divisors (658485973).

2511213803 is a wasteful number, since it uses less digits than its factorization.

2511213803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 2511213803 is about 50112.0125618599. The cubic root of 2511213803 is about 1359.2350446959.

Adding to 2511213803 its reverse (3083121152), we get a palindrome (5594334955).

The spelling of 2511213803 in words is "two billion, five hundred eleven million, two hundred thirteen thousand, eight hundred three".