10020111021321 has 16 divisors (see below), whose sum is σ = 13941846059136. Its totient is φ = 6389259250176.

The previous prime is 10020111021289. The next prime is 10020111021331. The reversal of 10020111021321 is 12312011102001.

It is not a de Polignac number, because 10020111021321 - 2⁵ = 10020111021289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10020111021321.

It is not an unprimeable number, because it can be changed into a prime (10020111021331) 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, 3100390 + ... + 5445423.

It is an arithmetic number, because the mean of its divisors is an integer number (871365378696).

Almost surely, 2^{10020111021321} is an apocalyptic number.

It is an amenable number.

10020111021321 is a deficient number, since it is larger than the sum of its proper divisors (3921735037815).

10020111021321 is a wasteful number, since it uses less digits than its factorization.

10020111021321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8562832.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 10020111021321 its reverse (12312011102001), we get a palindrome (22332122123322).

The spelling of 10020111021321 in words is "ten trillion, twenty billion, one hundred eleven million, twenty-one thousand, three hundred twenty-one".