1005111241 has 4 divisors (see below), whose sum is σ = 1014504912. Its totient is φ = 995717572.

The previous prime is 1005111169. The next prime is 1005111251. The reversal of 1005111241 is 1421115001.

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: 1421115001 = 1489 ⋅954409.

It is a cyclic number.

It is not a de Polignac number, because 1005111241 - 2²⁵ = 971556809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1005111251) 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, 4696675 + ... + 4696888.

It is an arithmetic number, because the mean of its divisors is an integer number (253626228).

Almost surely, 2^1005111241 is an apocalyptic number.

It is an amenable number.

1005111241 is a deficient number, since it is larger than the sum of its proper divisors (9393671).

1005111241 is an equidigital number, since it uses as much as digits as its factorization.

1005111241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9393670.

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 1005111241 is about 31703.4894136276. The cubic root of 1005111241 is about 1001.7008524608.

Adding to 1005111241 its reverse (1421115001), we get a palindrome (2426226242).

The spelling of 1005111241 in words is "one billion, five million, one hundred eleven thousand, two hundred forty-one".