133244432321 has 96 divisors (see below), whose sum is σ = 192239349120. Its totient is φ = 90531302400.

The previous prime is 133244432281. The next prime is 133244432327. The reversal of 133244432321 is 123234442331.

It is not a de Polignac number, because 133244432321 - 2¹⁴ = 133244415937 is a prime.

It is a super-3 number, since 3×133244432321³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (133244432327) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 52852541 + ... + 52855061.

It is an arithmetic number, because the mean of its divisors is an integer number (2002493220).

Almost surely, 2^133244432321 is an apocalyptic number.

133244432321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

133244432321 is a deficient number, since it is larger than the sum of its proper divisors (58994916799).

133244432321 is a wasteful number, since it uses less digits than its factorization.

133244432321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2975 (or 2968 counting only the distinct ones).

The product of its digits is 41472, while the sum is 32.

Adding to 133244432321 its reverse (123234442331), we get a palindrome (256478874652).

It can be divided in two parts, 133244 and 432321, that added together give a palindrome (565565).

The spelling of 133244432321 in words is "one hundred thirty-three billion, two hundred forty-four million, four hundred thirty-two thousand, three hundred twenty-one".