1313241023 has 4 divisors (see below), whose sum is σ = 1329063288. Its totient is φ = 1297418760.

The previous prime is 1313240989. The next prime is 1313241043. The reversal of 1313241023 is 3201423131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1313241023 - 2¹⁴ = 1313224639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1313240986 and 1313241004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313241043) 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, 7911008 + ... + 7911173.

It is an arithmetic number, because the mean of its divisors is an integer number (332265822).

Almost surely, 2^1313241023 is an apocalyptic number.

1313241023 is a deficient number, since it is larger than the sum of its proper divisors (15822265).

1313241023 is an equidigital number, since it uses as much as digits as its factorization.

1313241023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15822264.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1313241023 is about 36238.6675113752. The cubic root of 1313241023 is about 1095.0857985494.

Adding to 1313241023 its reverse (3201423131), we get a palindrome (4514664154).

The spelling of 1313241023 in words is "one billion, three hundred thirteen million, two hundred forty-one thousand, twenty-three".