12100501789 has 2 divisors, whose sum is σ = 12100501790. Its totient is φ = 12100501788.

The previous prime is 12100501771. The next prime is 12100501841. The reversal of 12100501789 is 98710500121.

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., 11431244889 + 669256900 = 106917^2 + 25870^2 .

It is a cyclic number.

It is not a de Polignac number, because 12100501789 - 2⁷ = 12100501661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12100501739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050250894 + 6050250895.

It is an arithmetic number, because the mean of its divisors is an integer number (6050250895).

Almost surely, 2^12100501789 is an apocalyptic number.

It is an amenable number.

12100501789 is a deficient number, since it is larger than the sum of its proper divisors (1).

12100501789 is an equidigital number, since it uses as much as digits as its factorization.

12100501789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 34.

The spelling of 12100501789 in words is "twelve billion, one hundred million, five hundred one thousand, seven hundred eighty-nine".