133123434023442 has 32 divisors (see below), whose sum is σ = 273963746649600. Its totient is φ = 43098038340480.

The previous prime is 133123434023381. The next prime is 133123434023453. The reversal of 133123434023442 is 244320434321331.

It is a self number, because there is not a number n which added to its sum of digits gives 133123434023442.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1213290817 + ... + 1213400532.

It is an arithmetic number, because the mean of its divisors is an integer number (8561367082800).

Almost surely, 2^{133123434023442} is an apocalyptic number.

133123434023442 is an abundant number, since it is smaller than the sum of its proper divisors (140840312626158).

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

133123434023442 is a wasteful number, since it uses less digits than its factorization.

133123434023442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2426691618.

The product of its (nonzero) digits is 497664, while the sum is 39.

Adding to 133123434023442 its reverse (244320434321331), we get a palindrome (377443868344773).

The spelling of 133123434023442 in words is "one hundred thirty-three trillion, one hundred twenty-three billion, four hundred thirty-four million, twenty-three thousand, four hundred forty-two".