101129071 has 4 divisors (see below), whose sum is σ = 101149192. Its totient is φ = 101108952.

The previous prime is 101129069. The next prime is 101129081. The reversal of 101129071 is 170921101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 170921101 = 13 ⋅13147777.

It is a cyclic number.

It is not a de Polignac number, because 101129071 - 2¹ = 101129069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101129081) 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, 4621 + ... + 14953.

It is an arithmetic number, because the mean of its divisors is an integer number (25287298).

Almost surely, 2^101129071 is an apocalyptic number.

101129071 is a deficient number, since it is larger than the sum of its proper divisors (20121).

101129071 is an equidigital number, since it uses as much as digits as its factorization.

101129071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20120.

The product of its (nonzero) digits is 126, while the sum is 22.

The square root of 101129071 is about 10056.2950931245. The cubic root of 101129071 is about 465.8992441822.

The spelling of 101129071 in words is "one hundred one million, one hundred twenty-nine thousand, seventy-one".