13123433 has 6 divisors (see below), whose sum is σ = 13850874. Its totient is φ = 12432384.

The previous prime is 13123423. The next prime is 13123441. The reversal of 13123433 is 33432131.

It can be written as a sum of positive squares in only one way, i.e., 10067929 + 3055504 = 3173^2 + 1748^2 .

It is not a de Polignac number, because 13123433 - 2¹⁰ = 13122409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13123423) 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 5 ways as a sum of consecutive naturals, for example, 17816 + ... + 18537.

It is an arithmetic number, because the mean of its divisors is an integer number (2308479).

Almost surely, 2^13123433 is an apocalyptic number.

It is an amenable number.

13123433 is a deficient number, since it is larger than the sum of its proper divisors (727441).

13123433 is an equidigital number, since it uses as much as digits as its factorization.

13123433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36391 (or 36372 counting only the distinct ones).

The product of its digits is 648, while the sum is 20.

The square root of 13123433 is about 3622.6279135456. The cubic root of 13123433 is about 235.8753111800.

Adding to 13123433 its reverse (33432131), we get a palindrome (46555564).

The spelling of 13123433 in words is "thirteen million, one hundred twenty-three thousand, four hundred thirty-three".