1330131523 has 16 divisors (see below), whose sum is σ = 1540949760. Its totient is φ = 1124558496.

The previous prime is 1330131511. The next prime is 1330131541. The reversal of 1330131523 is 3251310331.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1330131523 - 2²¹ = 1328034371 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1330131494 and 1330131503.

It is not an unprimeable number, because it can be changed into a prime (1330131623) 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 15 ways as a sum of consecutive naturals, for example, 455793 + ... + 458701.

It is an arithmetic number, because the mean of its divisors is an integer number (96309360).

Almost surely, 2^1330131523 is an apocalyptic number.

1330131523 is a deficient number, since it is larger than the sum of its proper divisors (210818237).

1330131523 is an equidigital number, since it uses as much as digits as its factorization.

1330131523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3786.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 1330131523 is about 36470.9682213127. The cubic root of 1330131523 is about 1099.7606980821.

Adding to 1330131523 its reverse (3251310331), we get a palindrome (4581441854).

The spelling of 1330131523 in words is "one billion, three hundred thirty million, one hundred thirty-one thousand, five hundred twenty-three".