10020981869 has 2 divisors, whose sum is σ = 10020981870. Its totient is φ = 10020981868.

The previous prime is 10020981853. The next prime is 10020981899. The reversal of 10020981869 is 96818902001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6969745225 + 3051236644 = 83485^2 + 55238^2 .

It is a cyclic number.

It is not a de Polignac number, because 10020981869 - 2⁴ = 10020981853 is a prime.

It is a super-3 number, since 3×10020981869³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10020981899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010490934 + 5010490935.

It is an arithmetic number, because the mean of its divisors is an integer number (5010490935).

Almost surely, 2^10020981869 is an apocalyptic number.

It is an amenable number.

10020981869 is a deficient number, since it is larger than the sum of its proper divisors (1).

10020981869 is an equidigital number, since it uses as much as digits as its factorization.

10020981869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 44.

The spelling of 10020981869 in words is "ten billion, twenty million, nine hundred eighty-one thousand, eight hundred sixty-nine".