1310203423 has 2 divisors, whose sum is σ = 1310203424. Its totient is φ = 1310203422.

The previous prime is 1310203403. The next prime is 1310203451. The reversal of 1310203423 is 3243020131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1310203423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1310203423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1310203403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655101711 + 655101712.

It is an arithmetic number, because the mean of its divisors is an integer number (655101712).

Almost surely, 2^1310203423 is an apocalyptic number.

1310203423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310203423 is an equidigital number, since it uses as much as digits as its factorization.

1310203423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1310203423 is about 36196.7322143864. The cubic root of 1310203423 is about 1094.2408151316.

Adding to 1310203423 its reverse (3243020131), we get a palindrome (4553223554).

The spelling of 1310203423 in words is "one billion, three hundred ten million, two hundred three thousand, four hundred twenty-three".