1523321423 has 8 divisors (see below), whose sum is σ = 1640920848. Its totient is φ = 1405782144.

The previous prime is 1523321417. The next prime is 1523321453. The reversal of 1523321423 is 3241233251.

It is a happy number.

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

It is not a de Polignac number, because 1523321423 - 2⁸ = 1523321167 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1523321392 and 1523321401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1523321453) 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, 47111 + ... + 72567.

It is an arithmetic number, because the mean of its divisors is an integer number (205115106).

Almost surely, 2^1523321423 is an apocalyptic number.

1523321423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1523321423 is a deficient number, since it is larger than the sum of its proper divisors (117599425).

1523321423 is a wasteful number, since it uses less digits than its factorization.

1523321423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30073.

The product of its digits is 4320, while the sum is 26.

The square root of 1523321423 is about 39029.7504860075. The cubic root of 1523321423 is about 1150.6162854264.

Adding to 1523321423 its reverse (3241233251), we get a palindrome (4764554674).

The spelling of 1523321423 in words is "one billion, five hundred twenty-three million, three hundred twenty-one thousand, four hundred twenty-three".