133020323131 has 4 divisors (see below), whose sum is σ = 133021781200. Its totient is φ = 133018865064.

The previous prime is 133020323129. The next prime is 133020323167. The reversal of 133020323131 is 131323020331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131323020331 = 4283 ⋅30661457.

It is a cyclic number.

It is not a de Polignac number, because 133020323131 - 2¹ = 133020323129 is a prime.

It is a super-2 number, since 2×133020323131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133020323231) 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, 582351 + ... + 777928.

It is an arithmetic number, because the mean of its divisors is an integer number (33255445300).

Almost surely, 2^133020323131 is an apocalyptic number.

133020323131 is a deficient number, since it is larger than the sum of its proper divisors (1458069).

133020323131 is an equidigital number, since it uses as much as digits as its factorization.

133020323131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458068.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 133020323131 its reverse (131323020331), we get a palindrome (264343343462).

The spelling of 133020323131 in words is "one hundred thirty-three billion, twenty million, three hundred twenty-three thousand, one hundred thirty-one".