10861121 has 2 divisors, whose sum is σ = 10861122. Its totient is φ = 10861120.

The previous prime is 10861117. The next prime is 10861127. The reversal of 10861121 is 12116801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10857025 + 4096 = 3295^2 + 64^2 .

It is a cyclic number.

It is not a de Polignac number, because 10861121 - 2² = 10861117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10861093 and 10861102.

It is not a weakly prime, because it can be changed into another prime (10861127) by changing a digit.

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 as a sum of consecutive naturals, namely, 5430560 + 5430561.

It is an arithmetic number, because the mean of its divisors is an integer number (5430561).

Almost surely, 2^10861121 is an apocalyptic number.

It is an amenable number.

10861121 is a deficient number, since it is larger than the sum of its proper divisors (1).

10861121 is an equidigital number, since it uses as much as digits as its factorization.

10861121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 20.

The square root of 10861121 is about 3295.6214891883. The cubic root of 10861121 is about 221.4580903711.

Adding to 10861121 its reverse (12116801), we get a palindrome (22977922).

The spelling of 10861121 in words is "ten million, eight hundred sixty-one thousand, one hundred twenty-one".