101331321 has 16 divisors (see below), whose sum is σ = 166287744. Its totient is φ = 53449344.

The previous prime is 101331317. The next prime is 101331359. The reversal of 101331321 is 123133101.

It is not a de Polignac number, because 101331321 - 2² = 101331317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101331321.

It is not an unprimeable number, because it can be changed into a prime (101331301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185316 + ... + 185861.

It is an arithmetic number, because the mean of its divisors is an integer number (10392984).

Almost surely, 2^101331321 is an apocalyptic number.

It is an amenable number.

101331321 is a deficient number, since it is larger than the sum of its proper divisors (64956423).

101331321 is a wasteful number, since it uses less digits than its factorization.

101331321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371200.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 101331321 is about 10066.3459606751. The cubic root of 101331321 is about 466.2096243551.

Adding to 101331321 its reverse (123133101), we get a palindrome (224464422).

It can be divided in two parts, 10 and 1331321, that added together give a palindrome (1331331).

The spelling of 101331321 in words is "one hundred one million, three hundred thirty-one thousand, three hundred twenty-one".