2133577321 has 2 divisors, whose sum is σ = 2133577322. Its totient is φ = 2133577320.

The previous prime is 2133577307. The next prime is 2133577337. The reversal of 2133577321 is 1237753312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1222201600 + 911375721 = 34960^2 + 30189^2 .

It is a cyclic number.

It is not a de Polignac number, because 2133577321 - 2⁵ = 2133577289 is a prime.

It is not a weakly prime, because it can be changed into another prime (2133577021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066788660 + 1066788661.

It is an arithmetic number, because the mean of its divisors is an integer number (1066788661).

Almost surely, 2^2133577321 is an apocalyptic number.

It is an amenable number.

2133577321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2133577321 is an equidigital number, since it uses as much as digits as its factorization.

2133577321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26460, while the sum is 34.

The square root of 2133577321 is about 46190.6627036244. The cubic root of 2133577321 is about 1287.3682541663.

The spelling of 2133577321 in words is "two billion, one hundred thirty-three million, five hundred seventy-seven thousand, three hundred twenty-one".