1011041025 has 24 divisors (see below), whose sum is σ = 1672601280. Its totient is φ = 538895040.

The previous prime is 1011040963. The next prime is 1011041039. The reversal of 1011041025 is 5201401101.

It is a happy number.

It is not a de Polignac number, because 1011041025 - 2⁸ = 1011040769 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 1011040995 and 1011041013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 169036 + ... + 174914.

It is an arithmetic number, because the mean of its divisors is an integer number (69691720).

Almost surely, 2^1011041025 is an apocalyptic number.

1011041025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1011041025 is a deficient number, since it is larger than the sum of its proper divisors (661560255).

1011041025 is a wasteful number, since it uses less digits than its factorization.

1011041025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8185 (or 8180 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 1011041025 is about 31796.8713083536. The cubic root of 1011041025 is about 1003.6668792284. Note that the first 3 decimals are identical.

Adding to 1011041025 its reverse (5201401101), we get a palindrome (6212442126).

The spelling of 1011041025 in words is "one billion, eleven million, forty-one thousand, twenty-five".