100971530321 has 4 divisors (see below), whose sum is σ = 100972918272. Its totient is φ = 100970142372.

The previous prime is 100971530299. The next prime is 100971530339. The reversal of 100971530321 is 123035179001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 123035179001 = 7 ⋅17576454143.

It is a cyclic number.

It is not a de Polignac number, because 100971530321 - 2²² = 100967336017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100971530521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578441 + ... + 732486.

It is an arithmetic number, because the mean of its divisors is an integer number (25243229568).

Almost surely, 2^100971530321 is an apocalyptic number.

It is an amenable number.

100971530321 is a deficient number, since it is larger than the sum of its proper divisors (1387951).

100971530321 is an equidigital number, since it uses as much as digits as its factorization.

100971530321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387950.

The product of its (nonzero) digits is 5670, while the sum is 32.

The spelling of 100971530321 in words is "one hundred billion, nine hundred seventy-one million, five hundred thirty thousand, three hundred twenty-one".