1313145423 has 12 divisors (see below), whose sum is σ = 1996595640. Its totient is φ = 829354896.

The previous prime is 1313145403. The next prime is 1313145443. The reversal of 1313145423 is 3245413131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1313145403) and next prime (1313145443).

It is not a de Polignac number, because 1313145423 - 2⁵ = 1313145391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313145403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3839436 + ... + 3839777.

It is an arithmetic number, because the mean of its divisors is an integer number (166382970).

Almost surely, 2^1313145423 is an apocalyptic number.

1313145423 is a deficient number, since it is larger than the sum of its proper divisors (683450217).

1313145423 is a wasteful number, since it uses less digits than its factorization.

1313145423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7679238 (or 7679235 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 1313145423 is about 36237.3484543226. The cubic root of 1313145423 is about 1095.0592249195.

Adding to 1313145423 its reverse (3245413131), we get a palindrome (4558558554).

The spelling of 1313145423 in words is "one billion, three hundred thirteen million, one hundred forty-five thousand, four hundred twenty-three".