13531201330 has 16 divisors (see below), whose sum is σ = 24629828760. Its totient is φ = 5351665792.

The previous prime is 13531201261. The next prime is 13531201331. The reversal of 13531201330 is 3310213531.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6496521201 + 7034680129 = 80601^2 + 83873^2 .

It is not an unprimeable number, because it can be changed into a prime (13531201331) 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, 7600909 + ... + 7602688.

Almost surely, 2^13531201330 is an apocalyptic number.

13531201330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13531201330 is a deficient number, since it is larger than the sum of its proper divisors (11098627430).

13531201330 is a wasteful number, since it uses less digits than its factorization.

13531201330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15203693.

The product of its (nonzero) digits is 810, while the sum is 22.

Adding to 13531201330 its reverse (3310213531), we get a palindrome (16841414861).

The spelling of 13531201330 in words is "thirteen billion, five hundred thirty-one million, two hundred one thousand, three hundred thirty".