13243531332 has 24 divisors (see below), whose sum is σ = 30920967616. Its totient is φ = 4411739808.

The previous prime is 13243531321. The next prime is 13243531339. The reversal of 13243531332 is 23313534231.

It is a super-2 number, since 2×13243531332² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13243531332.

It is not an unprimeable number, because it can be changed into a prime (13243531339) 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, 326368 + ... + 364695.

Almost surely, 2^13243531332 is an apocalyptic number.

13243531332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13243531332 is an abundant number, since it is smaller than the sum of its proper divisors (17677436284).

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

13243531332 is a wasteful number, since it uses less digits than its factorization.

13243531332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692667 (or 692665 counting only the distinct ones).

The product of its digits is 19440, while the sum is 30.

The spelling of 13243531332 in words is "thirteen billion, two hundred forty-three million, five hundred thirty-one thousand, three hundred thirty-two".