1310261023 has 4 divisors (see below), whose sum is σ = 1310408568. Its totient is φ = 1310113480.

The previous prime is 1310261021. The next prime is 1310261087. The reversal of 1310261023 is 3201620131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3201620131 = 53 ⋅60407927.

It is a cyclic number.

It is not a de Polignac number, because 1310261023 - 2¹ = 1310261021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310261021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59536 + ... + 78517.

It is an arithmetic number, because the mean of its divisors is an integer number (327602142).

Almost surely, 2^1310261023 is an apocalyptic number.

1310261023 is a deficient number, since it is larger than the sum of its proper divisors (147545).

1310261023 is an equidigital number, since it uses as much as digits as its factorization.

1310261023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147544.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1310261023 is about 36197.5278575761. The cubic root of 1310261023 is about 1094.2568501346.

Adding to 1310261023 its reverse (3201620131), we get a palindrome (4511881154).

The spelling of 1310261023 in words is "one billion, three hundred ten million, two hundred sixty-one thousand, twenty-three".