133120313213 has 4 divisors (see below), whose sum is σ = 133122610140. Its totient is φ = 133118016288.

The previous prime is 133120313173. The next prime is 133120313231. The reversal of 133120313213 is 312313021331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 312313021331 = 929 ⋅336181939.

It can be written as a sum of positive squares in 2 ways, for example, as 96172553689 + 36947759524 = 310117^2 + 192218^2 .

It is a cyclic number.

It is not a de Polignac number, because 133120313213 - 2²² = 133116118909 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 (133120313233) 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, 1059218 + ... + 1178211.

It is an arithmetic number, because the mean of its divisors is an integer number (33280652535).

Almost surely, 2^133120313213 is an apocalyptic number.

It is an amenable number.

133120313213 is a deficient number, since it is larger than the sum of its proper divisors (2296927).

133120313213 is an equidigital number, since it uses as much as digits as its factorization.

133120313213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2296926.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 133120313213 its reverse (312313021331), we get a palindrome (445433334544).

The spelling of 133120313213 in words is "one hundred thirty-three billion, one hundred twenty million, three hundred thirteen thousand, two hundred thirteen".