133434341281 has 2 divisors, whose sum is σ = 133434341282. Its totient is φ = 133434341280.

The previous prime is 133434341233. The next prime is 133434341309. The reversal of 133434341281 is 182143434331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90957131281 + 42477210000 = 301591^2 + 206100^2 .

It is a cyclic number.

It is not a de Polignac number, because 133434341281 - 2⁷ = 133434341153 is a prime.

It is a super-2 number, since 2×133434341281² (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 133434341281.

It is not a weakly prime, because it can be changed into another prime (133434341221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66717170640 + 66717170641.

It is an arithmetic number, because the mean of its divisors is an integer number (66717170641).

Almost surely, 2^133434341281 is an apocalyptic number.

It is an amenable number.

133434341281 is a deficient number, since it is larger than the sum of its proper divisors (1).

133434341281 is an equidigital number, since it uses as much as digits as its factorization.

133434341281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 37.

The spelling of 133434341281 in words is "one hundred thirty-three billion, four hundred thirty-four million, three hundred forty-one thousand, two hundred eighty-one".