1313242023 has 4 divisors (see below), whose sum is σ = 1750989368. Its totient is φ = 875494680.

The previous prime is 1313241997. The next prime is 1313242033. The reversal of 1313242023 is 3202423131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3202423131 = 3 ⋅1067474377.

It is not a de Polignac number, because 1313242023 - 2¹⁸ = 1312979879 is a prime.

It is a super-2 number, since 2×1313242023² = 3449209221946265058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313242033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218873668 + ... + 218873673.

It is an arithmetic number, because the mean of its divisors is an integer number (437747342).

Almost surely, 2^1313242023 is an apocalyptic number.

1313242023 is a deficient number, since it is larger than the sum of its proper divisors (437747345).

1313242023 is an equidigital number, since it uses as much as digits as its factorization.

1313242023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437747344.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1313242023 is about 36238.6813087894. The cubic root of 1313242023 is about 1095.0860765095.

Adding to 1313242023 its reverse (3202423131), we get a palindrome (4515665154).

It can be divided in two parts, 13132 and 42023, that added together give a palindrome (55155).

The spelling of 1313242023 in words is "one billion, three hundred thirteen million, two hundred forty-two thousand, twenty-three".