1111540241 has 4 divisors (see below), whose sum is σ = 1270331712. Its totient is φ = 952748772.

The previous prime is 1111540229. The next prime is 1111540279. The reversal of 1111540241 is 1420451111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1420451111 = 151 ⋅9406961.

It is a cyclic number.

It is not a de Polignac number, because 1111540241 - 2²² = 1107345937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111540201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79395725 + ... + 79395738.

It is an arithmetic number, because the mean of its divisors is an integer number (317582928).

Almost surely, 2^1111540241 is an apocalyptic number.

It is an amenable number.

1111540241 is a deficient number, since it is larger than the sum of its proper divisors (158791471).

1111540241 is an equidigital number, since it uses as much as digits as its factorization.

1111540241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158791470.

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 1111540241 is about 33339.7696602721. The cubic root of 1111540241 is about 1035.8774921228.

Adding to 1111540241 its reverse (1420451111), we get a palindrome (2531991352).

The spelling of 1111540241 in words is "one billion, one hundred eleven million, five hundred forty thousand, two hundred forty-one".