1233401122189 has 2 divisors, whose sum is σ = 1233401122190. Its totient is φ = 1233401122188.

The previous prime is 1233401122183. The next prime is 1233401122223. The reversal of 1233401122189 is 9812211043321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1194539702500 + 38861419689 = 1092950^2 + 197133^2 .

It is an emirp because it is prime and its reverse (9812211043321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1233401122189 - 2⁷ = 1233401122061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1233401122183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616700561094 + 616700561095.

It is an arithmetic number, because the mean of its divisors is an integer number (616700561095).

Almost surely, 2^{1233401122189} is an apocalyptic number.

It is an amenable number.

1233401122189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233401122189 is an equidigital number, since it uses as much as digits as its factorization.

1233401122189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 1233401122189 in words is "one trillion, two hundred thirty-three billion, four hundred one million, one hundred twenty-two thousand, one hundred eighty-nine".