133123031333 has 16 divisors (see below), whose sum is σ = 142679899440. Its totient is φ = 123760766976.

The previous prime is 133123031317. The next prime is 133123031347. The reversal of 133123031333 is 333130321331.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 25875296164 + 107247735169 = 160858^2 + 327487^2 .

It is a cyclic number.

It is not a de Polignac number, because 133123031333 - 2⁴ = 133123031317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133123031303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1489241 + ... + 1576097.

It is an arithmetic number, because the mean of its divisors is an integer number (8917493715).

Almost surely, 2^133123031333 is an apocalyptic number.

It is an amenable number.

133123031333 is a deficient number, since it is larger than the sum of its proper divisors (9556868107).

133123031333 is a wasteful number, since it uses less digits than its factorization.

133123031333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87976.

The product of its (nonzero) digits is 4374, while the sum is 26.

Adding to 133123031333 its reverse (333130321331), we get a palindrome (466253352664).

The spelling of 133123031333 in words is "one hundred thirty-three billion, one hundred twenty-three million, thirty-one thousand, three hundred thirty-three".