11515003131 has 8 divisors (see below), whose sum is σ = 15407590720. Its totient is φ = 7649542152.

The previous prime is 11515003069. The next prime is 11515003151. The reversal of 11515003131 is 13130051511.

11515003131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11515003131 - 2²³ = 11506614523 is a prime.

It is a super-2 number, since 2×11515003131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11515003098 and 11515003107.

It is not an unprimeable number, because it can be changed into a prime (11515003151) 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, 6780661 + ... + 6782358.

It is an arithmetic number, because the mean of its divisors is an integer number (1925948840).

Almost surely, 2^11515003131 is an apocalyptic number.

11515003131 is a deficient number, since it is larger than the sum of its proper divisors (3892587589).

11515003131 is a wasteful number, since it uses less digits than its factorization.

11515003131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13563305.

The product of its (nonzero) digits is 225, while the sum is 21.

Adding to 11515003131 its reverse (13130051511), we get a palindrome (24645054642).

The spelling of 11515003131 in words is "eleven billion, five hundred fifteen million, three thousand, one hundred thirty-one".