133211242321 has 2 divisors, whose sum is σ = 133211242322. Its totient is φ = 133211242320.

The previous prime is 133211242309. The next prime is 133211242357. The reversal of 133211242321 is 123242112331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108573545025 + 24637697296 = 329505^2 + 156964^2 .

It is a cyclic number.

It is not a de Polignac number, because 133211242321 - 2²⁵ = 133177687889 is a prime.

It is not a weakly prime, because it can be changed into another prime (133211242421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66605621160 + 66605621161.

It is an arithmetic number, because the mean of its divisors is an integer number (66605621161).

Almost surely, 2^133211242321 is an apocalyptic number.

It is an amenable number.

133211242321 is a deficient number, since it is larger than the sum of its proper divisors (1).

133211242321 is an equidigital number, since it uses as much as digits as its factorization.

133211242321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

Adding to 133211242321 its reverse (123242112331), we get a palindrome (256453354652).

The spelling of 133211242321 in words is "one hundred thirty-three billion, two hundred eleven million, two hundred forty-two thousand, three hundred twenty-one".