995123107331 has 2 divisors, whose sum is σ = 995123107332. Its totient is φ = 995123107330.

The previous prime is 995123107313. The next prime is 995123107339. The reversal of 995123107331 is 133701321599.

Together with previous prime (995123107313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (133701321599) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-995123107331 is a prime.

It is a super-2 number, since 2×995123107331² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (995123107339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497561553665 + 497561553666.

It is an arithmetic number, because the mean of its divisors is an integer number (497561553666).

Almost surely, 2^995123107331 is an apocalyptic number.

995123107331 is a deficient number, since it is larger than the sum of its proper divisors (1).

995123107331 is an equidigital number, since it uses as much as digits as its factorization.

995123107331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 153090, while the sum is 44.

The spelling of 995123107331 in words is "nine hundred ninety-five billion, one hundred twenty-three million, one hundred seven thousand, three hundred thirty-one".