133443400231 has 2 divisors, whose sum is σ = 133443400232. Its totient is φ = 133443400230.

The previous prime is 133443400217. The next prime is 133443400253. The reversal of 133443400231 is 132004344331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133443400231 - 2³⁵ = 99083661863 is a prime.

It is a super-2 number, since 2×133443400231² (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 133443400231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133443400271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66721700115 + 66721700116.

It is an arithmetic number, because the mean of its divisors is an integer number (66721700116).

Almost surely, 2^133443400231 is an apocalyptic number.

133443400231 is a deficient number, since it is larger than the sum of its proper divisors (1).

133443400231 is an equidigital number, since it uses as much as digits as its factorization.

133443400231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 133443400231 its reverse (132004344331), we get a palindrome (265447744562).

The spelling of 133443400231 in words is "one hundred thirty-three billion, four hundred forty-three million, four hundred thousand, two hundred thirty-one".