961223231183 has 2 divisors, whose sum is σ = 961223231184. Its totient is φ = 961223231182.

The previous prime is 961223231161. The next prime is 961223231209. The reversal of 961223231183 is 381132322169.

It is a weak prime.

It is an emirp because it is prime and its reverse (381132322169) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 961223231183 - 2¹² = 961223227087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 961223231183.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (961223231383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480611615591 + 480611615592.

It is an arithmetic number, because the mean of its divisors is an integer number (480611615592).

Almost surely, 2^961223231183 is an apocalyptic number.

961223231183 is a deficient number, since it is larger than the sum of its proper divisors (1).

961223231183 is an equidigital number, since it uses as much as digits as its factorization.

961223231183 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 41.

The spelling of 961223231183 in words is "nine hundred sixty-one billion, two hundred twenty-three million, two hundred thirty-one thousand, one hundred eighty-three".