11354103520421 has 8 divisors (see below), whose sum is σ = 11745782638200. Its totient is φ = 10962434956480.

The previous prime is 11354103520343. The next prime is 11354103520427. The reversal of 11354103520421 is 12402530145311.

11354103520421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1935256588225 + 9418846932196 = 1391135^2 + 3069014^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11354103520421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11354103520427) 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, 418010 + ... + 4783611.

It is an arithmetic number, because the mean of its divisors is an integer number (1468222829775).

Almost surely, 2^{11354103520421} is an apocalyptic number.

It is an amenable number.

11354103520421 is a deficient number, since it is larger than the sum of its proper divisors (391679117779).

11354103520421 is an equidigital number, since it uses as much as digits as its factorization.

11354103520421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5276919.

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 11354103520421 its reverse (12402530145311), we get a palindrome (23756633665732).

The spelling of 11354103520421 in words is "eleven trillion, three hundred fifty-four billion, one hundred three million, five hundred twenty thousand, four hundred twenty-one".