1111621441 has 16 divisors (see below), whose sum is σ = 1327083264. Its totient is φ = 910413504.

The previous prime is 1111621439. The next prime is 1111621447. The reversal of 1111621441 is 1441261111.

It is not a de Polignac number, because 1111621441 - 2¹ = 1111621439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111621447) 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, 172815 + ... + 179131.

It is an arithmetic number, because the mean of its divisors is an integer number (82942704).

Almost surely, 2^1111621441 is an apocalyptic number.

It is an amenable number.

1111621441 is a deficient number, since it is larger than the sum of its proper divisors (215461823).

1111621441 is a wasteful number, since it uses less digits than its factorization.

1111621441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7440.

The product of its digits is 192, while the sum is 22.

The square root of 1111621441 is about 33340.9874028950. The cubic root of 1111621441 is about 1035.9027157423.

Adding to 1111621441 its reverse (1441261111), we get a palindrome (2552882552).

The spelling of 1111621441 in words is "one billion, one hundred eleven million, six hundred twenty-one thousand, four hundred forty-one".