1012116641 has 4 divisors (see below), whose sum is σ = 1071652932. Its totient is φ = 952580352.

The previous prime is 1012116631. The next prime is 1012116647. The reversal of 1012116641 is 1466112101.

It is a happy number.

1012116641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 711822400 + 300294241 = 26680^2 + 17329^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012116641 - 2¹⁸ = 1011854497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012116647) 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, 29768120 + ... + 29768153.

It is an arithmetic number, because the mean of its divisors is an integer number (267913233).

Almost surely, 2^1012116641 is an apocalyptic number.

It is an amenable number.

1012116641 is a deficient number, since it is larger than the sum of its proper divisors (59536291).

1012116641 is an equidigital number, since it uses as much as digits as its factorization.

1012116641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59536290.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 1012116641 is about 31813.7806775617. The cubic root of 1012116641 is about 1004.0226767072.

Adding to 1012116641 its reverse (1466112101), we get a palindrome (2478228742).

It can be divided in two parts, 10121 and 16641, that added together give a palindrome (26762).

The spelling of 1012116641 in words is "one billion, twelve million, one hundred sixteen thousand, six hundred forty-one".