11211535435145 has 16 divisors (see below), whose sum is σ = 13485515072400. Its totient is φ = 8948118380544.

The previous prime is 11211535435141. The next prime is 11211535435181. The reversal of 11211535435145 is 54153453511211.

It can be written as a sum of positive squares in 8 ways, for example, as 13283023504 + 11198252411641 = 115252^2 + 3346379^2 .

It is a cyclic number.

It is not a de Polignac number, because 11211535435145 - 2² = 11211535435141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11211535435141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17631887 + ... + 18256683.

It is an arithmetic number, because the mean of its divisors is an integer number (842844692025).

Almost surely, 2^{11211535435145} is an apocalyptic number.

It is an amenable number.

11211535435145 is a deficient number, since it is larger than the sum of its proper divisors (2273979637255).

11211535435145 is an equidigital number, since it uses as much as digits as its factorization.

11211535435145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633244.

The product of its digits is 180000, while the sum is 41.

Adding to 11211535435145 its reverse (54153453511211), we get a palindrome (65364988946356).

The spelling of 11211535435145 in words is "eleven trillion, two hundred eleven billion, five hundred thirty-five million, four hundred thirty-five thousand, one hundred forty-five".