1111320225541 has 16 divisors (see below), whose sum is σ = 1182320800128. Its totient is φ = 1040955596800.

The previous prime is 1111320225517. The next prime is 1111320225577. The reversal of 1111320225541 is 1455220231111.

It is a cyclic number.

It is not a de Polignac number, because 1111320225541 - 2³¹ = 1109172741893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111320225511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3225006 + ... + 3552928.

It is an arithmetic number, because the mean of its divisors is an integer number (73895050008).

Almost surely, 2^{1111320225541} is an apocalyptic number.

It is an amenable number.

1111320225541 is a deficient number, since it is larger than the sum of its proper divisors (71000574587).

1111320225541 is a wasteful number, since it uses less digits than its factorization.

1111320225541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328892.

The product of its (nonzero) digits is 2400, while the sum is 28.

Adding to 1111320225541 its reverse (1455220231111), we get a palindrome (2566540456652).

The spelling of 1111320225541 in words is "one trillion, one hundred eleven billion, three hundred twenty million, two hundred twenty-five thousand, five hundred forty-one".