13531124450 has 12 divisors (see below), whose sum is σ = 25167891570. Its totient is φ = 5412449760.

The previous prime is 13531124447. The next prime is 13531124543. The reversal of 13531124450 is 5442113531.

It can be written as a sum of positive squares in 3 ways, for example, as 10276079641 + 3255044809 = 101371^2 + 57053^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 135311195 + ... + 135311294.

Almost surely, 2^13531124450 is an apocalyptic number.

13531124450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13531124450 is a deficient number, since it is larger than the sum of its proper divisors (11636767120).

13531124450 is a wasteful number, since it uses less digits than its factorization.

13531124450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270622501 (or 270622496 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 13531124450 its reverse (5442113531), we get a palindrome (18973237981).

The spelling of 13531124450 in words is "thirteen billion, five hundred thirty-one million, one hundred twenty-four thousand, four hundred fifty".