2194323116831 has 2 divisors, whose sum is σ = 2194323116832. Its totient is φ = 2194323116830.

The previous prime is 2194323116807. The next prime is 2194323116957. The reversal of 2194323116831 is 1386113234912.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2194323116831 - 2¹⁸ = 2194322854687 is a prime.

It is a super-2 number, since 2×2194323116831² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2194323116231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1097161558415 + 1097161558416.

It is an arithmetic number, because the mean of its divisors is an integer number (1097161558416).

Almost surely, 2^{2194323116831} is an apocalyptic number.

2194323116831 is a deficient number, since it is larger than the sum of its proper divisors (1).

2194323116831 is an equidigital number, since it uses as much as digits as its factorization.

2194323116831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 44.

The spelling of 2194323116831 in words is "two trillion, one hundred ninety-four billion, three hundred twenty-three million, one hundred sixteen thousand, eight hundred thirty-one".