133445355010231 has 4 divisors (see below), whose sum is σ = 145576750920264. Its totient is φ = 121313959100200.

The previous prime is 133445355010217. The next prime is 133445355010237. The reversal of 133445355010231 is 132010553544331.

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 133445355010231 - 2¹¹ = 133445355008183 is a prime.

It is a super-2 number, since 2×133445355010231² (a number of 29 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133445355010237) 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, 6065697955000 + ... + 6065697955021.

It is an arithmetic number, because the mean of its divisors is an integer number (36394187730066).

Almost surely, 2^{133445355010231} is an apocalyptic number.

133445355010231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

133445355010231 is a deficient number, since it is larger than the sum of its proper divisors (12131395910033).

133445355010231 is a wasteful number, since it uses less digits than its factorization.

133445355010231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12131395910032.

The product of its (nonzero) digits is 324000, while the sum is 40.

The spelling of 133445355010231 in words is "one hundred thirty-three trillion, four hundred forty-five billion, three hundred fifty-five million, ten thousand, two hundred thirty-one".