13530344451 has 16 divisors (see below), whose sum is σ = 19431412896. Its totient is φ = 8324983296.

The previous prime is 13530344449. The next prime is 13530344461. The reversal of 13530344451 is 15444303531.

It is not a de Polignac number, because 13530344451 - 2¹ = 13530344449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13530344431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241101 + ... + 291873.

It is an arithmetic number, because the mean of its divisors is an integer number (1214463306).

Almost surely, 2^13530344451 is an apocalyptic number.

13530344451 is a deficient number, since it is larger than the sum of its proper divisors (5901068445).

13530344451 is a wasteful number, since it uses less digits than its factorization.

13530344451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57622.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 13530344451 its reverse (15444303531), we get a palindrome (28974647982).

The spelling of 13530344451 in words is "thirteen billion, five hundred thirty million, three hundred forty-four thousand, four hundred fifty-one".