133453419991 has 2 divisors, whose sum is σ = 133453419992. Its totient is φ = 133453419990.

The previous prime is 133453419989. The next prime is 133453420003. The reversal of 133453419991 is 199914354331.

It is a weak prime.

It is an emirp because it is prime and its reverse (199914354331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133453419991 - 2¹ = 133453419989 is a prime.

Together with 133453419989, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133453819991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66726709995 + 66726709996.

It is an arithmetic number, because the mean of its divisors is an integer number (66726709996).

Almost surely, 2^133453419991 is an apocalyptic number.

133453419991 is a deficient number, since it is larger than the sum of its proper divisors (1).

133453419991 is an equidigital number, since it uses as much as digits as its factorization.

133453419991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1574640, while the sum is 52.

The spelling of 133453419991 in words is "one hundred thirty-three billion, four hundred fifty-three million, four hundred nineteen thousand, nine hundred ninety-one".