1101111441 has 16 divisors (see below), whose sum is σ = 1503899904. Its totient is φ = 716292864.

The previous prime is 1101111439. The next prime is 1101111443. The reversal of 1101111441 is 1441111011.

It is an interprime number because it is at equal distance from previous prime (1101111439) and next prime (1101111443).

It is not a de Polignac number, because 1101111441 - 2¹ = 1101111439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1101111441.

It is not an unprimeable number, because it can be changed into a prime (1101111443) 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, 35931 + ... + 59103.

It is an arithmetic number, because the mean of its divisors is an integer number (93993744).

Almost surely, 2^1101111441 is an apocalyptic number.

It is an amenable number.

1101111441 is a deficient number, since it is larger than the sum of its proper divisors (402788463).

1101111441 is a wasteful number, since it uses less digits than its factorization.

1101111441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23560.

The product of its (nonzero) digits is 16, while the sum is 15.

The square root of 1101111441 is about 33182.9992767381. Note that the first 3 decimals coincide. The cubic root of 1101111441 is about 1032.6276706816.

Adding to 1101111441 its reverse (1441111011), we get a palindrome (2542222452).

The spelling of 1101111441 in words is "one billion, one hundred one million, one hundred eleven thousand, four hundred forty-one".