1013320423 has 4 divisors (see below), whose sum is σ = 1034880480. Its totient is φ = 991760368.

The previous prime is 1013320391. The next prime is 1013320487. The reversal of 1013320423 is 3240233101.

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 1013320423 - 2⁵ = 1013320391 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1013320423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013320723) 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, 10779958 + ... + 10780051.

It is an arithmetic number, because the mean of its divisors is an integer number (258720120).

Almost surely, 2^1013320423 is an apocalyptic number.

1013320423 is a deficient number, since it is larger than the sum of its proper divisors (21560057).

1013320423 is an equidigital number, since it uses as much as digits as its factorization.

1013320423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21560056.

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

The square root of 1013320423 is about 31832.6942466389. The cubic root of 1013320423 is about 1004.4205707594.

Adding to 1013320423 its reverse (3240233101), we get a palindrome (4253553524).

The spelling of 1013320423 in words is "one billion, thirteen million, three hundred twenty thousand, four hundred twenty-three".