10001010321 has 18 divisors (see below), whose sum is σ = 14806858950. Its totient is φ = 6504712320.

The previous prime is 10001010317. The next prime is 10001010353. The reversal of 10001010321 is 12301010001.

It can be written as a sum of positive squares in 3 ways, for example, as 604422225 + 9396588096 = 24585^2 + 96936^2 .

It is not a de Polignac number, because 10001010321 - 2² = 10001010317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (10001010301) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 315396 + ... + 345653.

It is an arithmetic number, because the mean of its divisors is an integer number (822603275).

Almost surely, 2^10001010321 is an apocalyptic number.

It is an amenable number.

10001010321 is a deficient number, since it is larger than the sum of its proper divisors (4805848629).

10001010321 is an equidigital number, since it uses as much as digits as its factorization.

10001010321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661137 (or 661093 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 10001010321 its reverse (12301010001), we get a palindrome (22302020322).

The spelling of 10001010321 in words is "ten billion, one million, ten thousand, three hundred twenty-one".