133071623441 has 2 divisors, whose sum is σ = 133071623442. Its totient is φ = 133071623440.

The previous prime is 133071623429. The next prime is 133071623467. The reversal of 133071623441 is 144326170331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70607118400 + 62464505041 = 265720^2 + 249929^2 .

It is a cyclic number.

It is not a de Polignac number, because 133071623441 - 2³⁴ = 115891754257 is a prime.

It is not a weakly prime, because it can be changed into another prime (133071923441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66535811720 + 66535811721.

It is an arithmetic number, because the mean of its divisors is an integer number (66535811721).

Almost surely, 2^133071623441 is an apocalyptic number.

It is an amenable number.

133071623441 is a deficient number, since it is larger than the sum of its proper divisors (1).

133071623441 is an equidigital number, since it uses as much as digits as its factorization.

133071623441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 35.

Adding to 133071623441 its reverse (144326170331), we get a palindrome (277397793772).

The spelling of 133071623441 in words is "one hundred thirty-three billion, seventy-one million, six hundred twenty-three thousand, four hundred forty-one".