10020721263 has 16 divisors (see below), whose sum is σ = 15762241536. Its totient is φ = 5541412320.

The previous prime is 10020721261. The next prime is 10020721279. The reversal of 10020721263 is 36212702001.

10020721263 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10020721263 - 2¹ = 10020721261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020721261) 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, 7695756 + ... + 7697057.

It is an arithmetic number, because the mean of its divisors is an integer number (985140096).

Almost surely, 2^10020721263 is an apocalyptic number.

10020721263 is a deficient number, since it is larger than the sum of its proper divisors (5741520273).

10020721263 is a wasteful number, since it uses less digits than its factorization.

10020721263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15392854.

The product of its (nonzero) digits is 1008, while the sum is 24.

The spelling of 10020721263 in words is "ten billion, twenty million, seven hundred twenty-one thousand, two hundred sixty-three".