133121011212321 has 16 divisors (see below), whose sum is σ = 196520570151168. Its totient is φ = 79475230573200.

The previous prime is 133121011212317. The next prime is 133121011212331. The reversal of 133121011212321 is 123212110121331.

It is not a de Polignac number, because 133121011212321 - 2² = 133121011212317 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 133121011212291 and 133121011212300.

It is not an unprimeable number, because it can be changed into a prime (133121011212331) 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, 30104251795 + ... + 30104256216.

It is an arithmetic number, because the mean of its divisors is an integer number (12282535634448).

Almost surely, 2^{133121011212321} is an apocalyptic number.

133121011212321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

133121011212321 is a deficient number, since it is larger than the sum of its proper divisors (63399558938847).

133121011212321 is a wasteful number, since it uses less digits than its factorization.

133121011212321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60208508092.

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 133121011212321 its reverse (123212110121331), we get a palindrome (256333121333652).

The spelling of 133121011212321 in words is "one hundred thirty-three trillion, one hundred twenty-one billion, eleven million, two hundred twelve thousand, three hundred twenty-one".