13451243500 has 24 divisors (see below), whose sum is σ = 29377516896. Its totient is φ = 5380497200.

The previous prime is 13451243473. The next prime is 13451243503. The reversal of 13451243500 is 534215431.

It is not an unprimeable number, because it can be changed into a prime (13451243503) 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, 13450744 + ... + 13451743.

It is an arithmetic number, because the mean of its divisors is an integer number (1224063204).

Almost surely, 2^13451243500 is an apocalyptic number.

13451243500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13451243500 is an abundant number, since it is smaller than the sum of its proper divisors (15926273396).

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

13451243500 is a wasteful number, since it uses less digits than its factorization.

13451243500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26902506 (or 26902494 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 13451243500 its reverse (534215431), we get a palindrome (13985458931).

The spelling of 13451243500 in words is "thirteen billion, four hundred fifty-one million, two hundred forty-three thousand, five hundred".