133111505352450 has 192 divisors, whose sum is σ = 344719264555008. Its totient is φ = 33966992774400.

The previous prime is 133111505352443. The next prime is 133111505352451. The reversal of 133111505352450 is 54253505111331.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 133111505352399 and 133111505352408.

It is not an unprimeable number, because it can be changed into a prime (133111505352451) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 70891627 + ... + 72745073.

It is an arithmetic number, because the mean of its divisors is an integer number (1795412836224).

Almost surely, 2^{133111505352450} is an apocalyptic number.

133111505352450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 133111505352450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172359632277504).

133111505352450 is an abundant number, since it is smaller than the sum of its proper divisors (211607759202558).

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

133111505352450 is a wasteful number, since it uses less digits than its factorization.

133111505352450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853737 (or 1853732 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 39.

The spelling of 133111505352450 in words is "one hundred thirty-three trillion, one hundred eleven billion, five hundred five million, three hundred fifty-two thousand, four hundred fifty".