1315234321500 has 96 divisors (see below), whose sum is σ = 4178140791552. Its totient is φ = 318844680000.

The previous prime is 1315234321483. The next prime is 1315234321523. The reversal of 1315234321500 is 51234325131.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 39839086 + ... + 39872085.

It is an arithmetic number, because the mean of its divisors is an integer number (43522299912).

Almost surely, 2^{1315234321500} is an apocalyptic number.

1315234321500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1315234321500 is an abundant number, since it is smaller than the sum of its proper divisors (2862906470052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1315234321500 is a wasteful number, since it uses less digits than its factorization.

1315234321500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79711204 (or 79711192 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 1315234321500 its reverse (51234325131), we get a palindrome (1366468646631).

The spelling of 1315234321500 in words is "one trillion, three hundred fifteen billion, two hundred thirty-four million, three hundred twenty-one thousand, five hundred".