861301011 has 4 divisors (see below), whose sum is σ = 1148401352. Its totient is φ = 574200672.

The previous prime is 861300961. The next prime is 861301019. The reversal of 861301011 is 110103168.

861301011 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 is not a de Polignac number, because 861301011 - 2⁷ = 861300883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (861301019) 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, 143550166 + ... + 143550171.

It is an arithmetic number, because the mean of its divisors is an integer number (287100338).

Almost surely, 2^861301011 is an apocalyptic number.

861301011 is a deficient number, since it is larger than the sum of its proper divisors (287100341).

861301011 is a wasteful number, since it uses less digits than its factorization.

861301011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287100340.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 861301011 is about 29347.9302677378. The cubic root of 861301011 is about 951.4478425330.

Adding to 861301011 its reverse (110103168), we get a palindrome (971404179).

The spelling of 861301011 in words is "eight hundred sixty-one million, three hundred one thousand, eleven".