11515301012 has 24 divisors (see below), whose sum is σ = 20287039080. Its totient is φ = 5719127040.

The previous prime is 11515301011. The next prime is 11515301027. The reversal of 11515301012 is 21010351511.

It is a happy number.

11515301012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3754748176 + 7760552836 = 61276^2 + 88094^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11515301011) 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 7 ways as a sum of consecutive naturals, for example, 367664 + ... + 397752.

It is an arithmetic number, because the mean of its divisors is an integer number (845293295).

Almost surely, 2^11515301012 is an apocalyptic number.

It is an amenable number.

11515301012 is a deficient number, since it is larger than the sum of its proper divisors (8771738068).

11515301012 is a wasteful number, since it uses less digits than its factorization.

11515301012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30731 (or 30729 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 20.

Adding to 11515301012 its reverse (21010351511), we get a palindrome (32525652523).

The spelling of 11515301012 in words is "eleven billion, five hundred fifteen million, three hundred one thousand, twelve".