1310803961 has 2 divisors, whose sum is σ = 1310803962. Its totient is φ = 1310803960.

The previous prime is 1310803943. The next prime is 1310803979. The reversal of 1310803961 is 1693080131.

It is a balanced prime because it is at equal distance from previous prime (1310803943) and next prime (1310803979).

It can be written as a sum of positive squares in only one way, i.e., 1310802025 + 1936 = 36205^2 + 44^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310803961 - 2¹⁰ = 1310802937 is a prime.

It is not a weakly prime, because it can be changed into another prime (1310803861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655401980 + 655401981.

It is an arithmetic number, because the mean of its divisors is an integer number (655401981).

Almost surely, 2^1310803961 is an apocalyptic number.

It is an amenable number.

1310803961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310803961 is an equidigital number, since it uses as much as digits as its factorization.

1310803961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 1310803961 is about 36205.0267366287. The cubic root of 1310803961 is about 1094.4079730972.

The spelling of 1310803961 in words is "one billion, three hundred ten million, eight hundred three thousand, nine hundred sixty-one".