133233233131 has 4 divisors (see below), whose sum is σ = 133400402352. Its totient is φ = 133066063912.

The previous prime is 133233233129. The next prime is 133233233137. The reversal of 133233233131 is 131332332331.

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

It is a cyclic number.

It is not a de Polignac number, because 133233233131 - 2¹ = 133233233129 is a prime.

It is a super-2 number, since 2×133233233131² (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 133233233131.

It is not an unprimeable number, because it can be changed into a prime (133233233137) 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, 83583415 + ... + 83585008.

It is an arithmetic number, because the mean of its divisors is an integer number (33350100588).

Almost surely, 2^133233233131 is an apocalyptic number.

133233233131 is a deficient number, since it is larger than the sum of its proper divisors (167169221).

133233233131 is an equidigital number, since it uses as much as digits as its factorization.

133233233131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167169220.

The product of its digits is 8748, while the sum is 28.

Adding to 133233233131 its reverse (131332332331), we get a palindrome (264565565462).

The spelling of 133233233131 in words is "one hundred thirty-three billion, two hundred thirty-three million, two hundred thirty-three thousand, one hundred thirty-one".