11121131203445 has 8 divisors (see below), whose sum is σ = 13345432958040. Its totient is φ = 8896854620160.

The previous prime is 11121131203363. The next prime is 11121131203471. The reversal of 11121131203445 is 54430213112111.

It can be written as a sum of positive squares in 4 ways, for example, as 1303599913009 + 9817531290436 = 1141753^2 + 3133294^2 .

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

It is not a de Polignac number, because 11121131203445 - 2¹⁰ = 11121131202421 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5306780 + ... + 7099589.

It is an arithmetic number, because the mean of its divisors is an integer number (1668179119755).

Almost surely, 2^{11121131203445} is an apocalyptic number.

It is an amenable number.

11121131203445 is a deficient number, since it is larger than the sum of its proper divisors (2224301754595).

11121131203445 is a wasteful number, since it uses less digits than its factorization.

11121131203445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12585655.

The product of its (nonzero) digits is 2880, while the sum is 29.

Adding to 11121131203445 its reverse (54430213112111), we get a palindrome (65551344315556).

The spelling of 11121131203445 in words is "eleven trillion, one hundred twenty-one billion, one hundred thirty-one million, two hundred three thousand, four hundred forty-five".