1331023151 has 2 divisors, whose sum is σ = 1331023152. Its totient is φ = 1331023150.

The previous prime is 1331023117. The next prime is 1331023153. The reversal of 1331023151 is 1513201331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1331023151 - 2³⁰ = 257281327 is a prime.

Together with 1331023153, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1331023153) 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, 665511575 + 665511576.

It is an arithmetic number, because the mean of its divisors is an integer number (665511576).

Almost surely, 2^1331023151 is an apocalyptic number.

1331023151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331023151 is an equidigital number, since it uses as much as digits as its factorization.

1331023151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 1331023151 is about 36483.1899783996. The cubic root of 1331023151 is about 1100.0063776490.

Adding to 1331023151 its reverse (1513201331), we get a palindrome (2844224482).

The spelling of 1331023151 in words is "one billion, three hundred thirty-one million, twenty-three thousand, one hundred fifty-one".