1301001523 has 8 divisors (see below), whose sum is σ = 1309271040. Its totient is φ = 1292757000.

The previous prime is 1301001491. The next prime is 1301001563. The reversal of 1301001523 is 3251001031.

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 1301001523 - 2⁵ = 1301001491 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1301001497 and 1301001506.

It is not an unprimeable number, because it can be changed into a prime (1301001563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104286 + ... + 116092.

It is an arithmetic number, because the mean of its divisors is an integer number (163658880).

Almost surely, 2^1301001523 is an apocalyptic number.

1301001523 is a deficient number, since it is larger than the sum of its proper divisors (8269517).

1301001523 is a wasteful number, since it uses less digits than its factorization.

1301001523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12497.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 1301001523 is about 36069.3987058282. The cubic root of 1301001523 is about 1091.6730816501.

Adding to 1301001523 its reverse (3251001031), we get a palindrome (4552002554).

The spelling of 1301001523 in words is "one billion, three hundred one million, one thousand, five hundred twenty-three".