133704052431 has 12 divisors (see below), whose sum is σ = 182145804312. Its totient is φ = 87239519248.

The previous prime is 133704052393. The next prime is 133704052453. The reversal of 133704052431 is 134250407331.

It is a happy number.

It is not a de Polignac number, because 133704052431 - 2¹¹ = 133704050383 is a prime.

It is a super-2 number, since 2×133704052431² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133704052392 and 133704052401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133704052231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10081200 + ... + 10094453.

It is an arithmetic number, because the mean of its divisors is an integer number (15178817026).

Almost surely, 2^133704052431 is an apocalyptic number.

133704052431 is a deficient number, since it is larger than the sum of its proper divisors (48441751881).

133704052431 is an equidigital number, since it uses as much as digits as its factorization.

133704052431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20175750 (or 20175703 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

Adding to 133704052431 its reverse (134250407331), we get a palindrome (267954459762).

The spelling of 133704052431 in words is "one hundred thirty-three billion, seven hundred four million, fifty-two thousand, four hundred thirty-one".