1320303137 has 2 divisors, whose sum is σ = 1320303138. Its totient is φ = 1320303136.

The previous prime is 1320303119. The next prime is 1320303143. The reversal of 1320303137 is 7313030231.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1013212561 + 307090576 = 31831^2 + 17524^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320303137 - 2⁶ = 1320303073 is a prime.

It is not a weakly prime, because it can be changed into another prime (1320303437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660151568 + 660151569.

It is an arithmetic number, because the mean of its divisors is an integer number (660151569).

Almost surely, 2^1320303137 is an apocalyptic number.

It is an amenable number.

1320303137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320303137 is an equidigital number, since it uses as much as digits as its factorization.

1320303137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 23.

The square root of 1320303137 is about 36335.9757953464. The cubic root of 1320303137 is about 1097.0452761706.

Adding to 1320303137 its reverse (7313030231), we get a palindrome (8633333368).

The spelling of 1320303137 in words is "one billion, three hundred twenty million, three hundred three thousand, one hundred thirty-seven".