133189321943 has 2 divisors, whose sum is σ = 133189321944. Its totient is φ = 133189321942.

The previous prime is 133189321919. The next prime is 133189322027. The reversal of 133189321943 is 349123981331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133189321943 - 2⁶ = 133189321879 is a prime.

It is a super-2 number, since 2×133189321943² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133189321843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66594660971 + 66594660972.

It is an arithmetic number, because the mean of its divisors is an integer number (66594660972).

Almost surely, 2^133189321943 is an apocalyptic number.

133189321943 is a deficient number, since it is larger than the sum of its proper divisors (1).

133189321943 is an equidigital number, since it uses as much as digits as its factorization.

133189321943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 419904, while the sum is 47.

The spelling of 133189321943 in words is "one hundred thirty-three billion, one hundred eighty-nine million, three hundred twenty-one thousand, nine hundred forty-three".