10111011009989 has 2 divisors, whose sum is σ = 10111011009990. Its totient is φ = 10111011009988.

The previous prime is 10111011009977. The next prime is 10111011010049. The reversal of 10111011009989 is 98990011011101.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7970554229089 + 2140456780900 = 2823217^2 + 1463030^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10111011009989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10111011009389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055505504994 + 5055505504995.

It is an arithmetic number, because the mean of its divisors is an integer number (5055505504995).

Almost surely, 2^{10111011009989} is an apocalyptic number.

It is an amenable number.

10111011009989 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111011009989 is an equidigital number, since it uses as much as digits as its factorization.

10111011009989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 41.

The spelling of 10111011009989 in words is "ten trillion, one hundred eleven billion, eleven million, nine thousand, nine hundred eighty-nine".