133220024123431 has 12 divisors (see below), whose sum is σ = 154992476007408. Its totient is φ = 114172201890432.

The previous prime is 133220024123387. The next prime is 133220024123479. The reversal of 133220024123431 is 134321420022331.

It is not a de Polignac number, because 133220024123431 - 2²⁵ = 133219990568999 is a prime.

It is a super-2 number, since 2×133220024123431² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133220024123393 and 133220024123402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133220024123491) 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, 194776746 + ... + 195459511.

It is an arithmetic number, because the mean of its divisors is an integer number (12916039667284).

Almost surely, 2^{133220024123431} is an apocalyptic number.

133220024123431 is a deficient number, since it is larger than the sum of its proper divisors (21772451883977).

133220024123431 is an equidigital number, since it uses as much as digits as its factorization.

133220024123431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390243238 (or 390243231 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 133220024123431 its reverse (134321420022331), we get a palindrome (267541444145762).

The spelling of 133220024123431 in words is "one hundred thirty-three trillion, two hundred twenty billion, twenty-four million, one hundred twenty-three thousand, four hundred thirty-one".