1013123423 has 8 divisors (see below), whose sum is σ = 1092604800. Its totient is φ = 933863328.

The previous prime is 1013123411. The next prime is 1013123429. The reversal of 1013123423 is 3243213101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1013123423 - 2⁶ = 1013123359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1013123395 and 1013123404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013123429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45743 + ... + 64176.

It is an arithmetic number, because the mean of its divisors is an integer number (136575600).

Almost surely, 2^1013123423 is an apocalyptic number.

1013123423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1013123423 is a deficient number, since it is larger than the sum of its proper divisors (79481377).

1013123423 is a wasteful number, since it uses less digits than its factorization.

1013123423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110641.

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

The square root of 1013123423 is about 31829.5997932742. The cubic root of 1013123423 is about 1004.3554766154.

Adding to 1013123423 its reverse (3243213101), we get a palindrome (4256336524).

The spelling of 1013123423 in words is "one billion, thirteen million, one hundred twenty-three thousand, four hundred twenty-three".