100721150871 has 8 divisors (see below), whose sum is σ = 146503492224. Its totient is φ = 61043121720.

The previous prime is 100721150867. The next prime is 100721150903. The reversal of 100721150871 is 178051127001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100721150871 - 2² = 100721150867 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 3052156087 = 100721150871 / (1 + 0 + 0 + 7 + 2 + 1 + 1 + 5 + 0 + 8 + 7 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100721150171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1526078011 + ... + 1526078076.

It is an arithmetic number, because the mean of its divisors is an integer number (18312936528).

Almost surely, 2^100721150871 is an apocalyptic number.

100721150871 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

100721150871 is a deficient number, since it is larger than the sum of its proper divisors (45782341353).

100721150871 is a wasteful number, since it uses less digits than its factorization.

100721150871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3052156101.

The product of its (nonzero) digits is 3920, while the sum is 33.

Adding to 100721150871 its reverse (178051127001), we get a palindrome (278772277872).

The spelling of 100721150871 in words is "one hundred billion, seven hundred twenty-one million, one hundred fifty thousand, eight hundred seventy-one".