1111141025 has 12 divisors (see below), whose sum is σ = 1403813052. Its totient is φ = 872139840.

The previous prime is 1111141021. The next prime is 1111141051. The reversal of 1111141025 is 5201411111.

It can be written as a sum of positive squares in 6 ways, for example, as 176677264 + 934463761 = 13292^2 + 30569^2 .

It is not a de Polignac number, because 1111141025 - 2² = 1111141021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111140994 and 1111141012.

It is not an unprimeable number, because it can be changed into a prime (1111141021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 417974 + ... + 420623.

It is an arithmetic number, because the mean of its divisors is an integer number (116984421).

Almost surely, 2^1111141025 is an apocalyptic number.

It is an amenable number.

1111141025 is a deficient number, since it is larger than the sum of its proper divisors (292672027).

1111141025 is an equidigital number, since it uses as much as digits as its factorization.

1111141025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838660 (or 838655 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 17.

The square root of 1111141025 is about 33333.7820386466. The cubic root of 1111141025 is about 1035.7534635087.

Adding to 1111141025 its reverse (5201411111), we get a palindrome (6312552136).

The spelling of 1111141025 in words is "one billion, one hundred eleven million, one hundred forty-one thousand, twenty-five".