11515204143136 has 48 divisors (see below), whose sum is σ = 22686659259264. Its totient is φ = 5753514219264.

The previous prime is 11515204143049. The next prime is 11515204143143. The reversal of 11515204143136 is 63134140251511.

It is a junction number, because it is equal to n+sod(n) for n = 11515204143095 and 11515204143104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339434271 + ... + 339468193.

It is an arithmetic number, because the mean of its divisors is an integer number (472638734568).

Almost surely, 2^{11515204143136} is an apocalyptic number.

11515204143136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11515204143136 is a deficient number, since it is larger than the sum of its proper divisors (11171455116128).

11515204143136 is a wasteful number, since it uses less digits than its factorization.

11515204143136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41153 (or 41145 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

Adding to 11515204143136 its reverse (63134140251511), we get a palindrome (74649344394647).

The spelling of 11515204143136 in words is "eleven trillion, five hundred fifteen billion, two hundred four million, one hundred forty-three thousand, one hundred thirty-six".