10020111978353 has 2 divisors, whose sum is σ = 10020111978354. Its totient is φ = 10020111978352.

The previous prime is 10020111978337. The next prime is 10020111978377. The reversal of 10020111978353 is 35387911102001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9846617236624 + 173494741729 = 3137932^2 + 416527^2 .

It is a cyclic number.

It is not a de Polignac number, because 10020111978353 - 2⁴ = 10020111978337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10020111978353.

It is not a weakly prime, because it can be changed into another prime (10020111975353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010055989176 + 5010055989177.

It is an arithmetic number, because the mean of its divisors is an integer number (5010055989177).

Almost surely, 2^{10020111978353} is an apocalyptic number.

It is an amenable number.

10020111978353 is a deficient number, since it is larger than the sum of its proper divisors (1).

10020111978353 is an equidigital number, since it uses as much as digits as its factorization.

10020111978353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 41.

The spelling of 10020111978353 in words is "ten trillion, twenty billion, one hundred eleven million, nine hundred seventy-eight thousand, three hundred fifty-three".