13531212050 has 96 divisors (see below), whose sum is σ = 27400032000. Its totient is φ = 4951618560.

The previous prime is 13531212047. The next prime is 13531212077. The reversal of 13531212050 is 5021213531.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8734676 + ... + 8736224.

It is an arithmetic number, because the mean of its divisors is an integer number (285417000).

Almost surely, 2^13531212050 is an apocalyptic number.

13531212050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13531212050 is an abundant number, since it is smaller than the sum of its proper divisors (13868819950).

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

13531212050 is a wasteful number, since it uses less digits than its factorization.

13531212050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860 (or 1855 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 13531212050 its reverse (5021213531), we get a palindrome (18552425581).

The spelling of 13531212050 in words is "thirteen billion, five hundred thirty-one million, two hundred twelve thousand, fifty".