1310503091 has 2 divisors, whose sum is σ = 1310503092. Its totient is φ = 1310503090.

The previous prime is 1310503087. The next prime is 1310503133. The reversal of 1310503091 is 1903050131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1310503091 - 2² = 1310503087 is a prime.

It is not a weakly prime, because it can be changed into another prime (1310503001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655251545 + 655251546.

It is an arithmetic number, because the mean of its divisors is an integer number (655251546).

Almost surely, 2^1310503091 is an apocalyptic number.

1310503091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310503091 is an equidigital number, since it uses as much as digits as its factorization.

1310503091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 405, while the sum is 23.

The square root of 1310503091 is about 36200.8714121635. The cubic root of 1310503091 is about 1094.3242332112.

The spelling of 1310503091 in words is "one billion, three hundred ten million, five hundred three thousand, ninety-one".