1012001002321 has 16 divisors (see below), whose sum is σ = 1023728650560. Its totient is φ = 1000338431040.

The previous prime is 1012001002289. The next prime is 1012001002339. The reversal of 1012001002321 is 1232001002101.

It is a cyclic number.

It is not a de Polignac number, because 1012001002321 - 2⁵ = 1012001002289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012001002921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67114635 + ... + 67129711.

It is an arithmetic number, because the mean of its divisors is an integer number (63983040660).

Almost surely, 2^{1012001002321} is an apocalyptic number.

It is an amenable number.

1012001002321 is a deficient number, since it is larger than the sum of its proper divisors (11727648239).

1012001002321 is a wasteful number, since it uses less digits than its factorization.

1012001002321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17184.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1012001002321 its reverse (1232001002101), we get a palindrome (2244002004422).

The spelling of 1012001002321 in words is "one trillion, twelve billion, one million, two thousand, three hundred twenty-one".