1111133641 has 2 divisors, whose sum is σ = 1111133642. Its totient is φ = 1111133640.

The previous prime is 1111133609. The next prime is 1111133663. The reversal of 1111133641 is 1463311111.

It is an a-pointer prime, because the next prime (1111133663) can be obtained adding 1111133641 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 852406416 + 258727225 = 29196^2 + 16085^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111133641 - 2⁵ = 1111133609 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111133671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555566820 + 555566821.

It is an arithmetic number, because the mean of its divisors is an integer number (555566821).

Almost surely, 2^1111133641 is an apocalyptic number.

It is an amenable number.

1111133641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111133641 is an equidigital number, since it uses as much as digits as its factorization.

1111133641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 22.

The square root of 1111133641 is about 33333.6712799535. The cubic root of 1111133641 is about 1035.7511691643.

Adding to 1111133641 its reverse (1463311111), we get a palindrome (2574444752).

The spelling of 1111133641 in words is "one billion, one hundred eleven million, one hundred thirty-three thousand, six hundred forty-one".