133021023321 has 4 divisors (see below), whose sum is σ = 177361364432. Its totient is φ = 88680682212.

The previous prime is 133021023251. The next prime is 133021023379. The reversal of 133021023321 is 123320120331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 133021023321 - 2¹⁸ = 133020761177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133021021321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22170170551 + ... + 22170170556.

It is an arithmetic number, because the mean of its divisors is an integer number (44340341108).

Almost surely, 2^133021023321 is an apocalyptic number.

It is an amenable number.

133021023321 is a deficient number, since it is larger than the sum of its proper divisors (44340341111).

133021023321 is an equidigital number, since it uses as much as digits as its factorization.

133021023321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44340341110.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 133021023321 its reverse (123320120331), we get a palindrome (256341143652).

It can be divided in two parts, 1330210 and 23321, that added together give a palindrome (1353531).

The spelling of 133021023321 in words is "one hundred thirty-three billion, twenty-one million, twenty-three thousand, three hundred twenty-one".