20112030111389 has 2 divisors, whose sum is σ = 20112030111390. Its totient is φ = 20112030111388.

The previous prime is 20112030111293. The next prime is 20112030111421. The reversal of 20112030111389 is 98311103021102.

It is a happy number.

It is an a-pointer prime, because the next prime (20112030111421) can be obtained adding 20112030111389 to its sum of digits (32).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15844260835225 + 4267769276164 = 3980485^2 + 2065858^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20112030111389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20112030113389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056015055694 + 10056015055695.

It is an arithmetic number, because the mean of its divisors is an integer number (10056015055695).

Almost surely, 2^{20112030111389} is an apocalyptic number.

It is an amenable number.

20112030111389 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112030111389 is an equidigital number, since it uses as much as digits as its factorization.

20112030111389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 32.

The spelling of 20112030111389 in words is "twenty trillion, one hundred twelve billion, thirty million, one hundred eleven thousand, three hundred eighty-nine".