133304434331431 has 16 divisors (see below), whose sum is σ = 153092592339840. Its totient is φ = 114795849330720.

The previous prime is 133304434331423. The next prime is 133304434331443. The reversal of 133304434331431 is 134133434403331.

It is a happy number.

It is not a de Polignac number, because 133304434331431 - 2³ = 133304434331423 is a prime.

It is a super-2 number, since 2×133304434331431² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133304434331531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30731665 + ... + 34800058.

It is an arithmetic number, because the mean of its divisors is an integer number (9568287021240).

Almost surely, 2^{133304434331431} is an apocalyptic number.

133304434331431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

133304434331431 is a deficient number, since it is larger than the sum of its proper divisors (19788158008409).

133304434331431 is a wasteful number, since it uses less digits than its factorization.

133304434331431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65541486.

The product of its (nonzero) digits is 559872, while the sum is 40.

Adding to 133304434331431 its reverse (134133434403331), we get a palindrome (267437868734762).

The spelling of 133304434331431 in words is "one hundred thirty-three trillion, three hundred four billion, four hundred thirty-four million, three hundred thirty-one thousand, four hundred thirty-one".