101156123 has 2 divisors, whose sum is σ = 101156124. Its totient is φ = 101156122.

The previous prime is 101156087. The next prime is 101156129. The reversal of 101156123 is 321651101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101156123 - 2⁶ = 101156059 is a prime.

It is a super-2 number, since 2×101156123² = 20465122440782258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101156095 and 101156104.

It is not a weakly prime, because it can be changed into another prime (101156129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50578061 + 50578062.

It is an arithmetic number, because the mean of its divisors is an integer number (50578062).

Almost surely, 2^101156123 is an apocalyptic number.

101156123 is a deficient number, since it is larger than the sum of its proper divisors (1).

101156123 is an equidigital number, since it uses as much as digits as its factorization.

101156123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 101156123 is about 10057.6400313394. The cubic root of 101156123 is about 465.9407831205.

The spelling of 101156123 in words is "one hundred one million, one hundred fifty-six thousand, one hundred twenty-three".