101330331021 has 12 divisors (see below), whose sum is σ = 151786998272. Its totient is φ = 67553553852.

The previous prime is 101330331013. The next prime is 101330331139. The reversal of 101330331021 is 120133033101.

It is a happy number.

101330331021 is a `hidden beast` number, since 1 + 0 + 1 + 330 + 3 + 310 + 21 = 666.

It is not a de Polignac number, because 101330331021 - 2³ = 101330331013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101330330985 and 101330331003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101330331721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 208498381 + ... + 208498866.

Almost surely, 2^101330331021 is an apocalyptic number.

It is an amenable number.

101330331021 is a deficient number, since it is larger than the sum of its proper divisors (50456667251).

101330331021 is an frugal number, since it uses more digits than its factorization.

101330331021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416997262 (or 416997250 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 101330331021 its reverse (120133033101), we get a palindrome (221463364122).

The spelling of 101330331021 in words is "one hundred one billion, three hundred thirty million, three hundred thirty-one thousand, twenty-one".