108123881 has 2 divisors, whose sum is σ = 108123882. Its totient is φ = 108123880.

The previous prime is 108123853. The next prime is 108123901. The reversal of 108123881 is 188321801.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86118400 + 22005481 = 9280^2 + 4691^2 .

It is a cyclic number.

It is not a de Polignac number, because 108123881 - 2⁶ = 108123817 is a prime.

It is a super-2 number, since 2×108123881² = 23381547285004322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (108123481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54061940 + 54061941.

It is an arithmetic number, because the mean of its divisors is an integer number (54061941).

Almost surely, 2^108123881 is an apocalyptic number.

It is an amenable number.

108123881 is a deficient number, since it is larger than the sum of its proper divisors (1).

108123881 is an equidigital number, since it uses as much as digits as its factorization.

108123881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 32.

The square root of 108123881 is about 10398.2633646201. The cubic root of 108123881 is about 476.4023282656.

The spelling of 108123881 in words is "one hundred eight million, one hundred twenty-three thousand, eight hundred eighty-one".