1332121247 has 2 divisors, whose sum is σ = 1332121248. Its totient is φ = 1332121246.

The previous prime is 1332121237. The next prime is 1332121261. The reversal of 1332121247 is 7421212331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1332121247 - 2⁸ = 1332120991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1332121237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 666060623 + 666060624.

It is an arithmetic number, because the mean of its divisors is an integer number (666060624).

Almost surely, 2^1332121247 is an apocalyptic number.

1332121247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1332121247 is an equidigital number, since it uses as much as digits as its factorization.

1332121247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 26.

The square root of 1332121247 is about 36498.2362176585. The cubic root of 1332121247 is about 1100.3087967762.

Adding to 1332121247 its reverse (7421212331), we get a palindrome (8753333578).

The spelling of 1332121247 in words is "one billion, three hundred thirty-two million, one hundred twenty-one thousand, two hundred forty-seven".