133313323012321 has 16 divisors (see below), whose sum is σ = 144857873571840. Its totient is φ = 122221651098960.

The previous prime is 133313323012211. The next prime is 133313323012361. The reversal of 133313323012321 is 123210323313331.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 133313323012321 - 2¹³ = 133313323004129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133313323012361) 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, 69249246 + ... + 71148328.

It is an arithmetic number, because the mean of its divisors is an integer number (9053617098240).

Almost surely, 2^{133313323012321} is an apocalyptic number.

It is an amenable number.

133313323012321 is a deficient number, since it is larger than the sum of its proper divisors (11544550559519).

133313323012321 is a wasteful number, since it uses less digits than its factorization.

133313323012321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018316.

The product of its (nonzero) digits is 17496, while the sum is 31.

Adding to 133313323012321 its reverse (123210323313331), we get a palindrome (256523646325652).

The spelling of 133313323012321 in words is "one hundred thirty-three trillion, three hundred thirteen billion, three hundred twenty-three million, twelve thousand, three hundred twenty-one".