13431515455332 has 36 divisors (see below), whose sum is σ = 36563569851900. Its totient is φ = 4132773986112.

The previous prime is 13431515455331. The next prime is 13431515455339. The reversal of 13431515455332 is 23355451513431.

13431515455332 is a `hidden beast` number, since 1 + 3 + 4 + 3 + 1 + 51 + 545 + 53 + 3 + 2 = 666.

13431515455332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1908111246336 + 11523404208996 = 1381344^2 + 3394614^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (13431515455331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14349909207 + ... + 14349910142.

Almost surely, 2^{13431515455332} is an apocalyptic number.

13431515455332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13431515455332 is an abundant number, since it is smaller than the sum of its proper divisors (23132054396568).

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

13431515455332 is a wasteful number, since it uses less digits than its factorization.

13431515455332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28699819372 (or 28699819367 counting only the distinct ones).

The product of its digits is 1620000, while the sum is 45.

Adding to 13431515455332 its reverse (23355451513431), we get a palindrome (36786966968763).

The spelling of 13431515455332 in words is "thirteen trillion, four hundred thirty-one billion, five hundred fifteen million, four hundred fifty-five thousand, three hundred thirty-two".