133123103321 has 4 divisors (see below), whose sum is σ = 143363342052. Its totient is φ = 122882864592.

The previous prime is 133123103257. The next prime is 133123103327. The reversal of 133123103321 is 123301321331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9967027225 + 123156076096 = 99835^2 + 350936^2 .

It is a cyclic number.

It is not a de Polignac number, because 133123103321 - 2⁶ = 133123103257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133123103327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5120119346 + ... + 5120119371.

It is an arithmetic number, because the mean of its divisors is an integer number (35840835513).

Almost surely, 2^133123103321 is an apocalyptic number.

It is an amenable number.

133123103321 is a deficient number, since it is larger than the sum of its proper divisors (10240238731).

133123103321 is a wasteful number, since it uses less digits than its factorization.

133123103321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10240238730.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 133123103321 its reverse (123301321331), we get a palindrome (256424424652).

The spelling of 133123103321 in words is "one hundred thirty-three billion, one hundred twenty-three million, one hundred three thousand, three hundred twenty-one".