133123123000 has 64 divisors (see below), whose sum is σ = 356009284800. Its totient is φ = 45642211200.

The previous prime is 133123122989. The next prime is 133123123013. The reversal of 133123123000 is 321321331.

It is a congruent number.

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, 9501795 + ... + 9515794.

It is an arithmetic number, because the mean of its divisors is an integer number (5562645075).

Almost surely, 2^133123123000 is an apocalyptic number.

133123123000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133123123000 is an abundant number, since it is smaller than the sum of its proper divisors (222886161800).

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

133123123000 is a wasteful number, since it uses less digits than its factorization.

133123123000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19017617 (or 19017603 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 133123123000 its reverse (321321331), we get a palindrome (133444444331).

The spelling of 133123123000 in words is "one hundred thirty-three billion, one hundred twenty-three million, one hundred twenty-three thousand".