133233301331 has 4 divisors (see below), whose sum is σ = 143482016832. Its totient is φ = 122984585832.

The previous prime is 133233301307. The next prime is 133233301339. The reversal of 133233301331 is 133103332331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133103332331 = 9293 ⋅14322967.

It is a cyclic number.

It is not a de Polignac number, because 133233301331 - 2²² = 133229107027 is a prime.

It is a super-2 number, since 2×133233301331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133233301331.

It is not an unprimeable number, because it can be changed into a prime (133233301339) 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, 5124357731 + ... + 5124357756.

It is an arithmetic number, because the mean of its divisors is an integer number (35870504208).

Almost surely, 2^133233301331 is an apocalyptic number.

133233301331 is a deficient number, since it is larger than the sum of its proper divisors (10248715501).

133233301331 is a wasteful number, since it uses less digits than its factorization.

133233301331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10248715500.

The product of its (nonzero) digits is 4374, while the sum is 26.

Adding to 133233301331 its reverse (133103332331), we get a palindrome (266336633662).

The spelling of 133233301331 in words is "one hundred thirty-three billion, two hundred thirty-three million, three hundred one thousand, three hundred thirty-one".