995881123 has 2 divisors, whose sum is σ = 995881124. Its totient is φ = 995881122.

The previous prime is 995881121. The next prime is 995881151. The reversal of 995881123 is 321188599.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 995881123 - 2¹ = 995881121 is a prime.

It is a super-2 number, since 2×995881123² = 1983558422295482258, which contains 22 as substring.

Together with 995881121, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (995881121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497940561 + 497940562.

It is an arithmetic number, because the mean of its divisors is an integer number (497940562).

Almost surely, 2^995881123 is an apocalyptic number.

995881123 is a deficient number, since it is larger than the sum of its proper divisors (1).

995881123 is an equidigital number, since it uses as much as digits as its factorization.

995881123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 46.

The square root of 995881123 is about 31557.5842389749. The cubic root of 995881123 is about 998.6251516583.

It can be divided in two parts, 995881 and 123, that added together give a square (996004 = 998²).

The spelling of 995881123 in words is "nine hundred ninety-five million, eight hundred eighty-one thousand, one hundred twenty-three".