11211523304545 has 8 divisors (see below), whose sum is σ = 13459101923520. Its totient is φ = 8965702671600.

The previous prime is 11211523304507. The next prime is 11211523304567. The reversal of 11211523304545 is 54540332511211.

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

It is not a de Polignac number, because 11211523304545 - 2¹⁹ = 11211522780257 is a prime.

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, 439482475 + ... + 439507984.

It is an arithmetic number, because the mean of its divisors is an integer number (1682387740440).

Almost surely, 2^{11211523304545} is an apocalyptic number.

It is an amenable number.

11211523304545 is a deficient number, since it is larger than the sum of its proper divisors (2247578618975).

11211523304545 is an equidigital number, since it uses as much as digits as its factorization.

11211523304545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878993015.

The product of its (nonzero) digits is 72000, while the sum is 37.

Adding to 11211523304545 its reverse (54540332511211), we get a palindrome (65751855815756).

The spelling of 11211523304545 in words is "eleven trillion, two hundred eleven billion, five hundred twenty-three million, three hundred four thousand, five hundred forty-five".