1523323123 has 12 divisors (see below), whose sum is σ = 1772804880. Its totient is φ = 1305133872.

The previous prime is 1523323121. The next prime is 1523323129. The reversal of 1523323123 is 3213233251.

It is not a de Polignac number, because 1523323123 - 2¹ = 1523323121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1523323121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136893 + ... + 147601.

It is an arithmetic number, because the mean of its divisors is an integer number (147733740).

Almost surely, 2^1523323123 is an apocalyptic number.

1523323123 is a deficient number, since it is larger than the sum of its proper divisors (249481757).

1523323123 is a wasteful number, since it uses less digits than its factorization.

1523323123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13626 (or 13619 counting only the distinct ones).

The product of its digits is 3240, while the sum is 25.

The square root of 1523323123 is about 39029.7722642600. The cubic root of 1523323123 is about 1150.6167134488.

Adding to 1523323123 its reverse (3213233251), we get a palindrome (4736556374).

The spelling of 1523323123 in words is "one billion, five hundred twenty-three million, three hundred twenty-three thousand, one hundred twenty-three".