133413221431 has 16 divisors (see below), whose sum is σ = 152674536960. Its totient is φ = 114202591200.

The previous prime is 133413221411. The next prime is 133413221449. The reversal of 133413221431 is 134122314331.

It is a cyclic number.

It is not a de Polignac number, because 133413221431 - 2¹⁵ = 133413188663 is a prime.

It is a super-2 number, since 2×133413221431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133413221431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133413221411) 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, 23605956 + ... + 23611606.

It is an arithmetic number, because the mean of its divisors is an integer number (9542158560).

Almost surely, 2^133413221431 is an apocalyptic number.

133413221431 is a deficient number, since it is larger than the sum of its proper divisors (19261315529).

133413221431 is a wasteful number, since it uses less digits than its factorization.

133413221431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9534.

The product of its digits is 5184, while the sum is 28.

Adding to 133413221431 its reverse (134122314331), we get a palindrome (267535535762).

The spelling of 133413221431 in words is "one hundred thirty-three billion, four hundred thirteen million, two hundred twenty-one thousand, four hundred thirty-one".