101255123 has 4 divisors (see below), whose sum is σ = 106584360. Its totient is φ = 95925888.

The previous prime is 101255113. The next prime is 101255171. The reversal of 101255123 is 321552101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321552101 = 13 ⋅24734777.

It is a cyclic number.

It is not a de Polignac number, because 101255123 - 2⁴ = 101255107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101255095 and 101255104.

It is not an unprimeable number, because it can be changed into a prime (101255113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2664590 + ... + 2664627.

It is an arithmetic number, because the mean of its divisors is an integer number (26646090).

Almost surely, 2^101255123 is an apocalyptic number.

101255123 is a deficient number, since it is larger than the sum of its proper divisors (5329237).

101255123 is an equidigital number, since it uses as much as digits as its factorization.

101255123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5329236.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 101255123 is about 10062.5604594457. The cubic root of 101255123 is about 466.0927366751.

The spelling of 101255123 in words is "one hundred one million, two hundred fifty-five thousand, one hundred twenty-three".