20000112989 has 2 divisors, whose sum is σ = 20000112990. Its totient is φ = 20000112988.

The previous prime is 20000112949. The next prime is 20000113009. The reversal of 20000112989 is 98921100002.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19749524089 + 250588900 = 140533^2 + 15830^2 .

It is a cyclic number.

It is not a de Polignac number, because 20000112989 - 2⁸ = 20000112733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20000112949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000056494 + 10000056495.

It is an arithmetic number, because the mean of its divisors is an integer number (10000056495).

Almost surely, 2^20000112989 is an apocalyptic number.

It is an amenable number.

20000112989 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000112989 is an equidigital number, since it uses as much as digits as its factorization.

20000112989 is an evil number, because the sum of its binary digits is even.

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

The spelling of 20000112989 in words is "twenty billion, one hundred twelve thousand, nine hundred eighty-nine".