101864123 has 4 divisors (see below), whose sum is σ = 101885568. Its totient is φ = 101842680.

The previous prime is 101864089. The next prime is 101864137. The reversal of 101864123 is 321468101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101864123 - 2¹² = 101860027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101864092 and 101864101.

It is not an unprimeable number, because it can be changed into a prime (101864173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68 + ... + 14273.

It is an arithmetic number, because the mean of its divisors is an integer number (25471392).

Almost surely, 2^101864123 is an apocalyptic number.

101864123 is a deficient number, since it is larger than the sum of its proper divisors (21445).

101864123 is an equidigital number, since it uses as much as digits as its factorization.

101864123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21444.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 101864123 is about 10092.7757827072. The cubic root of 101864123 is about 467.0253093959.

The spelling of 101864123 in words is "one hundred one million, eight hundred sixty-four thousand, one hundred twenty-three".