1310203129 has 2 divisors, whose sum is σ = 1310203130. Its totient is φ = 1310203128.

The previous prime is 1310203117. The next prime is 1310203171. The reversal of 1310203129 is 9213020131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 716793529 + 593409600 = 26773^2 + 24360^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310203129 - 2⁷ = 1310203001 is a prime.

It is not a weakly prime, because it can be changed into another prime (1310303129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655101564 + 655101565.

It is an arithmetic number, because the mean of its divisors is an integer number (655101565).

Almost surely, 2^1310203129 is an apocalyptic number.

It is an amenable number.

1310203129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310203129 is an equidigital number, since it uses as much as digits as its factorization.

1310203129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 1310203129 is about 36196.7281532461. The cubic root of 1310203129 is about 1094.2407332851.

The spelling of 1310203129 in words is "one billion, three hundred ten million, two hundred three thousand, one hundred twenty-nine".