201021113133233 has 2 divisors, whose sum is σ = 201021113133234. Its totient is φ = 201021113133232.

The previous prime is 201021113133199. The next prime is 201021113133241. The reversal of 201021113133233 is 332331311120102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 188340271058944 + 12680842074289 = 13723712^2 + 3561017^2 .

It is a cyclic number.

It is not a de Polignac number, because 201021113133233 - 2²⁰ = 201021112084657 is a prime.

It is not a weakly prime, because it can be changed into another prime (201021113139233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100510556566616 + 100510556566617.

It is an arithmetic number, because the mean of its divisors is an integer number (100510556566617).

Almost surely, 2^{201021113133233} is an apocalyptic number.

It is an amenable number.

201021113133233 is a deficient number, since it is larger than the sum of its proper divisors (1).

201021113133233 is an equidigital number, since it uses as much as digits as its factorization.

201021113133233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 201021113133233 its reverse (332331311120102), we get a palindrome (533352424253335).

The spelling of 201021113133233 in words is "two hundred one trillion, twenty-one billion, one hundred thirteen million, one hundred thirty-three thousand, two hundred thirty-three".