11520111303 has 16 divisors (see below), whose sum is σ = 17142024960. Its totient is φ = 7646237208.

The previous prime is 11520111259. The next prime is 11520111307. The reversal of 11520111303 is 30311102511.

11520111303 is a `hidden beast` number, since 1 + 1 + 520 + 11 + 130 + 3 = 666.

It is not a de Polignac number, because 11520111303 - 2²² = 11515916999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11520111307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 933675 + ... + 945932.

It is an arithmetic number, because the mean of its divisors is an integer number (1071376560).

Almost surely, 2^11520111303 is an apocalyptic number.

11520111303 is a deficient number, since it is larger than the sum of its proper divisors (5621913657).

11520111303 is a wasteful number, since it uses less digits than its factorization.

11520111303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1879843 (or 1879837 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

Adding to 11520111303 its reverse (30311102511), we get a palindrome (41831213814).

The spelling of 11520111303 in words is "eleven billion, five hundred twenty million, one hundred eleven thousand, three hundred three".