1311556532323 has 8 divisors (see below), whose sum is σ = 1312770321200. Its totient is φ = 1310343052320.

The previous prime is 1311556532303. The next prime is 1311556532359. The reversal of 1311556532323 is 3232356551131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1311556532323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311556532303) 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, 8898061 + ... + 9044257.

It is an arithmetic number, because the mean of its divisors is an integer number (164096290150).

Almost surely, 2^{1311556532323} is an apocalyptic number.

1311556532323 is a deficient number, since it is larger than the sum of its proper divisors (1213788877).

1311556532323 is a wasteful number, since it uses less digits than its factorization.

1311556532323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154437.

The product of its digits is 243000, while the sum is 40.

The spelling of 1311556532323 in words is "one trillion, three hundred eleven billion, five hundred fifty-six million, five hundred thirty-two thousand, three hundred twenty-three".