11521050355 has 16 divisors (see below), whose sum is σ = 13974901920. Its totient is φ = 9117176832.

The previous prime is 11521050287. The next prime is 11521050361. The reversal of 11521050355 is 55305012511.

It is a cyclic number.

It is not a de Polignac number, because 11521050355 - 2⁹ = 11521049843 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1191681 + ... + 1201309.

It is an arithmetic number, because the mean of its divisors is an integer number (873431370).

Almost surely, 2^11521050355 is an apocalyptic number.

11521050355 is a deficient number, since it is larger than the sum of its proper divisors (2453851565).

11521050355 is an equidigital number, since it uses as much as digits as its factorization.

11521050355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12198.

The product of its (nonzero) digits is 3750, while the sum is 28.

Adding to 11521050355 its reverse (55305012511), we get a palindrome (66826062866).

The spelling of 11521050355 in words is "eleven billion, five hundred twenty-one million, fifty thousand, three hundred fifty-five".