101242321 has 4 divisors (see below), whose sum is σ = 102462192. Its totient is φ = 100022452.

The previous prime is 101242319. The next prime is 101242357. The reversal of 101242321 is 123242101.

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.

It is a cyclic number.

It is not a de Polignac number, because 101242321 - 2¹ = 101242319 is a prime.

It is a super-2 number, since 2×101242321² = 20500015122934082, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101242295 and 101242304.

It is not an unprimeable number, because it can be changed into a prime (101242391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 609811 + ... + 609976.

It is an arithmetic number, because the mean of its divisors is an integer number (25615548).

Almost surely, 2^101242321 is an apocalyptic number.

It is an amenable number.

101242321 is a deficient number, since it is larger than the sum of its proper divisors (1219871).

101242321 is an equidigital number, since it uses as much as digits as its factorization.

101242321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219870.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 101242321 is about 10061.9243189362. The cubic root of 101242321 is about 466.0730926626.

Adding to 101242321 its reverse (123242101), we get a palindrome (224484422).

The spelling of 101242321 in words is "one hundred one million, two hundred forty-two thousand, three hundred twenty-one".