1313031037 has 2 divisors, whose sum is σ = 1313031038. Its totient is φ = 1313031036.

The previous prime is 1313031019. The next prime is 1313031053. The reversal of 1313031037 is 7301303131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1232641881 + 80389156 = 35109^2 + 8966^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313031037 - 2⁷ = 1313030909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1313030999 and 1313031017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313031067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656515518 + 656515519.

It is an arithmetic number, because the mean of its divisors is an integer number (656515519).

Almost surely, 2^1313031037 is an apocalyptic number.

It is an amenable number.

1313031037 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313031037 is an equidigital number, since it uses as much as digits as its factorization.

1313031037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 567, while the sum is 22.

The square root of 1313031037 is about 36235.7701311839. The cubic root of 1313031037 is about 1095.0274277097.

Adding to 1313031037 its reverse (7301303131), we get a palindrome (8614334168).

The spelling of 1313031037 in words is "one billion, three hundred thirteen million, thirty-one thousand, thirty-seven".