106231087889 has 2 divisors, whose sum is σ = 106231087890. Its totient is φ = 106231087888.

The previous prime is 106231087847. The next prime is 106231087903. The reversal of 106231087889 is 988780132601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82809846289 + 23421241600 = 287767^2 + 153040^2 .

It is a cyclic number.

It is not a de Polignac number, because 106231087889 - 2²⁰ = 106230039313 is a prime.

It is a super-2 number, since 2×106231087889² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 106231087889.

It is not a weakly prime, because it can be changed into another prime (106231087819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53115543944 + 53115543945.

It is an arithmetic number, because the mean of its divisors is an integer number (53115543945).

Almost surely, 2^106231087889 is an apocalyptic number.

It is an amenable number.

106231087889 is a deficient number, since it is larger than the sum of its proper divisors (1).

106231087889 is an equidigital number, since it uses as much as digits as its factorization.

106231087889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1161216, while the sum is 53.

The spelling of 106231087889 in words is "one hundred six billion, two hundred thirty-one million, eighty-seven thousand, eight hundred eighty-nine".