201330312133 has 4 divisors (see below), whose sum is σ = 201332879020. Its totient is φ = 201327745248.

The previous prime is 201330312121. The next prime is 201330312149. The reversal of 201330312133 is 331213033102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 149659112164 + 51671199969 = 386858^2 + 227313^2 .

It is a cyclic number.

It is not a de Polignac number, because 201330312133 - 2²¹ = 201328214981 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 (201330312173) 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, 1161960 + ... + 1323937.

It is an arithmetic number, because the mean of its divisors is an integer number (50333219755).

Almost surely, 2^201330312133 is an apocalyptic number.

It is an amenable number.

201330312133 is a deficient number, since it is larger than the sum of its proper divisors (2566887).

201330312133 is an equidigital number, since it uses as much as digits as its factorization.

201330312133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2566886.

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

Adding to 201330312133 its reverse (331213033102), we get a palindrome (532543345235).

The spelling of 201330312133 in words is "two hundred one billion, three hundred thirty million, three hundred twelve thousand, one hundred thirty-three".