133023135318 has 32 divisors (see below), whose sum is σ = 266366880000. Its totient is φ = 44287648416.

The previous prime is 133023135277. The next prime is 133023135319. The reversal of 133023135318 is 813531320331.

It is a super-2 number, since 2×133023135318² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133023135319) 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, 25081855 + ... + 25087157.

It is an arithmetic number, because the mean of its divisors is an integer number (8323965000).

Almost surely, 2^133023135318 is an apocalyptic number.

133023135318 is an abundant number, since it is smaller than the sum of its proper divisors (133343744682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133023135318 is a wasteful number, since it uses less digits than its factorization.

133023135318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9556.

The product of its (nonzero) digits is 19440, while the sum is 33.

Adding to 133023135318 its reverse (813531320331), we get a palindrome (946554455649).

The spelling of 133023135318 in words is "one hundred thirty-three billion, twenty-three million, one hundred thirty-five thousand, three hundred eighteen".