1330996523 has 4 divisors (see below), whose sum is σ = 1366969440. Its totient is φ = 1295023608.

The previous prime is 1330996519. The next prime is 1330996543. The reversal of 1330996523 is 3256990331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3256990331 = 7 ⋅465284333.

It is a cyclic number.

It is not a de Polignac number, because 1330996523 - 2² = 1330996519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1330996543) 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 3 ways as a sum of consecutive naturals, for example, 17986403 + ... + 17986476.

It is an arithmetic number, because the mean of its divisors is an integer number (341742360).

Almost surely, 2^1330996523 is an apocalyptic number.

1330996523 is a deficient number, since it is larger than the sum of its proper divisors (35972917).

1330996523 is an equidigital number, since it uses as much as digits as its factorization.

1330996523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35972916.

The product of its (nonzero) digits is 131220, while the sum is 41.

The square root of 1330996523 is about 36482.8250413808. The cubic root of 1330996523 is about 1099.9990421479. Note that the first 3 decimals are identical.

The spelling of 1330996523 in words is "one billion, three hundred thirty million, nine hundred ninety-six thousand, five hundred twenty-three".