101031971 has 4 divisors (see below), whose sum is σ = 101091744. Its totient is φ = 100972200.

The previous prime is 101031943. The next prime is 101032033. The reversal of 101031971 is 179130101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 179130101 = 73 ⋅2453837.

It is a cyclic number.

It is not a de Polignac number, because 101031971 - 2⁶ = 101031907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101031871) 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, 27275 + ... + 30756.

It is an arithmetic number, because the mean of its divisors is an integer number (25272936).

Almost surely, 2^101031971 is an apocalyptic number.

101031971 is a deficient number, since it is larger than the sum of its proper divisors (59773).

101031971 is an equidigital number, since it uses as much as digits as its factorization.

101031971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59772.

The product of its (nonzero) digits is 189, while the sum is 23.

The square root of 101031971 is about 10051.4661119660. The cubic root of 101031971 is about 465.7500839631.

The spelling of 101031971 in words is "one hundred one million, thirty-one thousand, nine hundred seventy-one".