101324721 has 8 divisors (see below), whose sum is σ = 137314624. Its totient is φ = 66442320.

The previous prime is 101324719. The next prime is 101324723. The reversal of 101324721 is 127423101.

It is an interprime number because it is at equal distance from previous prime (101324719) and next prime (101324723).

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

It is not a de Polignac number, because 101324721 - 2¹ = 101324719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101324723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276661 + ... + 277026.

It is an arithmetic number, because the mean of its divisors is an integer number (17164328).

Almost surely, 2^101324721 is an apocalyptic number.

It is an amenable number.

101324721 is a deficient number, since it is larger than the sum of its proper divisors (35989903).

101324721 is an equidigital number, since it uses as much as digits as its factorization.

101324721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553751.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 101324721 is about 10066.0181303234. The cubic root of 101324721 is about 466.1995022780.

Adding to 101324721 its reverse (127423101), we get a palindrome (228747822).

The spelling of 101324721 in words is "one hundred one million, three hundred twenty-four thousand, seven hundred twenty-one".