133123203331 has 4 divisors (see below), whose sum is σ = 133124405472. Its totient is φ = 133122001192.

The previous prime is 133123203259. The next prime is 133123203341. The reversal of 133123203331 is 133302321331.

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 133123203331 - 2⁹ = 133123202819 is a prime.

It is a super-2 number, since 2×133123203331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133123203296 and 133123203305.

It is not an unprimeable number, because it can be changed into a prime (133123203341) 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, 415960 + ... + 662773.

It is an arithmetic number, because the mean of its divisors is an integer number (33281101368).

Almost surely, 2^133123203331 is an apocalyptic number.

133123203331 is a deficient number, since it is larger than the sum of its proper divisors (1202141).

133123203331 is a wasteful number, since it uses less digits than its factorization.

133123203331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202140.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 133123203331 its reverse (133302321331), we get a palindrome (266425524662).

The spelling of 133123203331 in words is "one hundred thirty-three billion, one hundred twenty-three million, two hundred three thousand, three hundred thirty-one".