971223101 has 8 divisors (see below), whose sum is σ = 999122904. Its totient is φ = 943410240.

The previous prime is 971223059. The next prime is 971223103. The reversal of 971223101 is 101322179.

It can be written as a sum of positive squares in 4 ways, for example, as 900601 + 970322500 = 949^2 + 31150^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-971223101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971223103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1271 + ... + 44091.

It is an arithmetic number, because the mean of its divisors is an integer number (124890363).

Almost surely, 2^971223101 is an apocalyptic number.

It is an amenable number.

971223101 is a deficient number, since it is larger than the sum of its proper divisors (27899803).

971223101 is a wasteful number, since it uses less digits than its factorization.

971223101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43471.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 971223101 is about 31164.4525220643. The cubic root of 971223101 is about 990.3141882759.

The spelling of 971223101 in words is "nine hundred seventy-one million, two hundred twenty-three thousand, one hundred one".