210110101010989 has 2 divisors, whose sum is σ = 210110101010990. Its totient is φ = 210110101010988.

The previous prime is 210110101010951. The next prime is 210110101011059. The reversal of 210110101010989 is 989010101011012.

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., 208134577996900 + 1975523014089 = 14426870^2 + 1405533^2 .

It is a cyclic number.

It is not a de Polignac number, because 210110101010989 - 2²⁵ = 210110067456557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210110101010189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105055050505494 + 105055050505495.

It is an arithmetic number, because the mean of its divisors is an integer number (105055050505495).

Almost surely, 2^{210110101010989} is an apocalyptic number.

It is an amenable number.

210110101010989 is a deficient number, since it is larger than the sum of its proper divisors (1).

210110101010989 is an equidigital number, since it uses as much as digits as its factorization.

210110101010989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 34.

The spelling of 210110101010989 in words is "two hundred ten trillion, one hundred ten billion, one hundred one million, ten thousand, nine hundred eighty-nine".