1313523500 has 24 divisors (see below), whose sum is σ = 2868736416. Its totient is φ = 525409200.

The previous prime is 1313523493. The next prime is 1313523557. The reversal of 1313523500 is 53253131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1313024 + ... + 1314023.

It is an arithmetic number, because the mean of its divisors is an integer number (119530684).

Almost surely, 2^1313523500 is an apocalyptic number.

1313523500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313523500 is an abundant number, since it is smaller than the sum of its proper divisors (1555212916).

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

1313523500 is a wasteful number, since it uses less digits than its factorization.

1313523500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627066 (or 2627054 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 1313523500 is about 36242.5647547190. The cubic root of 1313523500 is about 1095.1643102542.

Adding to 1313523500 its reverse (53253131), we get a palindrome (1366776631).

The spelling of 1313523500 in words is "one billion, three hundred thirteen million, five hundred twenty-three thousand, five hundred".