133212233231989 has 2 divisors, whose sum is σ = 133212233231990. Its totient is φ = 133212233231988.

The previous prime is 133212233231983. The next prime is 133212233232049. The reversal of 133212233231989 is 989132332212331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127240768811025 + 5971464420964 = 11280105^2 + 2443658^2 .

It is a cyclic number.

It is not a de Polignac number, because 133212233231989 - 2⁹ = 133212233231477 is a prime.

It is a super-2 number, since 2×133212233231989² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133212233231983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66606116615994 + 66606116615995.

It is an arithmetic number, because the mean of its divisors is an integer number (66606116615995).

Almost surely, 2^{133212233231989} is an apocalyptic number.

It is an amenable number.

133212233231989 is a deficient number, since it is larger than the sum of its proper divisors (1).

133212233231989 is an equidigital number, since it uses as much as digits as its factorization.

133212233231989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2519424, while the sum is 52.

The spelling of 133212233231989 in words is "one hundred thirty-three trillion, two hundred twelve billion, two hundred thirty-three million, two hundred thirty-one thousand, nine hundred eighty-nine".