1316223523 has 8 divisors (see below), whose sum is σ = 1326027248. Its totient is φ = 1306450944.

The previous prime is 1316223481. The next prime is 1316223539. The reversal of 1316223523 is 3253226131.

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-1316223523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1316223491 and 1316223500.

It is not an unprimeable number, because it can be changed into a prime (1316223563) 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, 80740 + ... + 95662.

It is an arithmetic number, because the mean of its divisors is an integer number (165753406).

Almost surely, 2^1316223523 is an apocalyptic number.

1316223523 is a deficient number, since it is larger than the sum of its proper divisors (9803725).

1316223523 is a wasteful number, since it uses less digits than its factorization.

1316223523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15573.

The product of its digits is 6480, while the sum is 28.

The square root of 1316223523 is about 36279.7949691009. The cubic root of 1316223523 is about 1095.9141877311.

Adding to 1316223523 its reverse (3253226131), we get a palindrome (4569449654).

The spelling of 1316223523 in words is "one billion, three hundred sixteen million, two hundred twenty-three thousand, five hundred twenty-three".