133023430993 has 2 divisors, whose sum is σ = 133023430994. Its totient is φ = 133023430992.

The previous prime is 133023430949. The next prime is 133023431059. The reversal of 133023430993 is 399034320331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99936912384 + 33086518609 = 316128^2 + 181897^2 .

It is an emirp because it is prime and its reverse (399034320331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133023430993 - 2³³ = 124433496401 is a prime.

It is not a weakly prime, because it can be changed into another prime (133026430993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66511715496 + 66511715497.

It is an arithmetic number, because the mean of its divisors is an integer number (66511715497).

Almost surely, 2^133023430993 is an apocalyptic number.

It is an amenable number.

133023430993 is a deficient number, since it is larger than the sum of its proper divisors (1).

133023430993 is an equidigital number, since it uses as much as digits as its factorization.

133023430993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 157464, while the sum is 40.

The spelling of 133023430993 in words is "one hundred thirty-three billion, twenty-three million, four hundred thirty thousand, nine hundred ninety-three".