11541012215 has 8 divisors (see below), whose sum is σ = 13853160240. Its totient is φ = 9230179392.

The previous prime is 11541012211. The next prime is 11541012221. The reversal of 11541012215 is 51221014511.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11541012215 - 2² = 11541012211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11541012211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309389 + ... + 344678.

It is an arithmetic number, because the mean of its divisors is an integer number (1731645030).

Almost surely, 2^11541012215 is an apocalyptic number.

11541012215 is a deficient number, since it is larger than the sum of its proper divisors (2312148025).

11541012215 is an equidigital number, since it uses as much as digits as its factorization.

11541012215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657601.

The product of its (nonzero) digits is 400, while the sum is 23.

Adding to 11541012215 its reverse (51221014511), we get a palindrome (62762026726).

The spelling of 11541012215 in words is "eleven billion, five hundred forty-one million, twelve thousand, two hundred fifteen".