1332121361 has 2 divisors, whose sum is σ = 1332121362. Its totient is φ = 1332121360.

The previous prime is 1332121333. The next prime is 1332121363. The reversal of 1332121361 is 1631212331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1214940736 + 117180625 = 34856^2 + 10825^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1332121361 is a prime.

It is a Sophie Germain prime.

Together with 1332121363, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1332121363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 666060680 + 666060681.

It is an arithmetic number, because the mean of its divisors is an integer number (666060681).

Almost surely, 2^1332121361 is an apocalyptic number.

It is an amenable number.

1332121361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1332121361 is an equidigital number, since it uses as much as digits as its factorization.

1332121361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 23.

The square root of 1332121361 is about 36498.2377793778. The cubic root of 1332121361 is about 1100.3088281635.

Adding to 1332121361 its reverse (1631212331), we get a palindrome (2963333692).

The spelling of 1332121361 in words is "one billion, three hundred thirty-two million, one hundred twenty-one thousand, three hundred sixty-one".