10101439321 has 4 divisors (see below), whose sum is σ = 10695641652. Its totient is φ = 9507236992.

The previous prime is 10101439307. The next prime is 10101439343. The reversal of 10101439321 is 12393410101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6916417225 + 3185022096 = 83165^2 + 56436^2 .

It is a cyclic number.

It is not a de Polignac number, because 10101439321 - 2⁷ = 10101439193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10101439121) 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 3 ways as a sum of consecutive naturals, for example, 297101140 + ... + 297101173.

It is an arithmetic number, because the mean of its divisors is an integer number (2673910413).

Almost surely, 2^10101439321 is an apocalyptic number.

It is an amenable number.

10101439321 is a deficient number, since it is larger than the sum of its proper divisors (594202331).

10101439321 is an equidigital number, since it uses as much as digits as its factorization.

10101439321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594202330.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 10101439321 its reverse (12393410101), we get a palindrome (22494849422).

The spelling of 10101439321 in words is "ten billion, one hundred one million, four hundred thirty-nine thousand, three hundred twenty-one".