101323021 has 8 divisors (see below), whose sum is σ = 102678840. Its totient is φ = 99975168.

The previous prime is 101323003. The next prime is 101323031. The reversal of 101323021 is 120323101.

It can be written as a sum of positive squares in 4 ways, for example, as 20520900 + 80802121 = 4530^2 + 8989^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 101323021 - 2⁹ = 101322509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101322992 and 101323010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101323031) 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, 26205 + ... + 29821.

It is an arithmetic number, because the mean of its divisors is an integer number (12834855).

Almost surely, 2^101323021 is an apocalyptic number.

It is an amenable number.

101323021 is a deficient number, since it is larger than the sum of its proper divisors (1355819).

101323021 is a wasteful number, since it uses less digits than its factorization.

101323021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3983.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 101323021 is about 10065.9336874430. The cubic root of 101323021 is about 466.1968950051.

Adding to 101323021 its reverse (120323101), we get a palindrome (221646122).

The spelling of 101323021 in words is "one hundred one million, three hundred twenty-three thousand, twenty-one".