133213404321 has 48 divisors (see below), whose sum is σ = 203390533632. Its totient is φ = 83885608800.

The previous prime is 133213404281. The next prime is 133213404341. The reversal of 133213404321 is 123404312331.

It is a happy number.

133213404321 is a `hidden beast` number, since 1 + 332 + 1 + 3 + 4 + 0 + 4 + 321 = 666.

It is not a de Polignac number, because 133213404321 - 2⁷ = 133213404193 is a prime.

It is a super-2 number, since 2×133213404321² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133213404341) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21867486 + ... + 21873576.

It is an arithmetic number, because the mean of its divisors is an integer number (4237302784).

Almost surely, 2^133213404321 is an apocalyptic number.

It is an amenable number.

133213404321 is a deficient number, since it is larger than the sum of its proper divisors (70177129311).

133213404321 is a wasteful number, since it uses less digits than its factorization.

133213404321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7994 (or 7991 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 133213404321 its reverse (123404312331), we get a palindrome (256617716652).

The spelling of 133213404321 in words is "one hundred thirty-three billion, two hundred thirteen million, four hundred four thousand, three hundred twenty-one".