13431123566652 has 144 divisors (see below), whose sum is σ = 36834761559456. Its totient is φ = 3792695808000.

The previous prime is 13431123566639. The next prime is 13431123566683. The reversal of 13431123566652 is 25666532113431.

It is a congruent 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, 200593 + ... + 5186760.

It is an arithmetic number, because the mean of its divisors is an integer number (255796955274).

Almost surely, 2^{13431123566652} is an apocalyptic number.

13431123566652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13431123566652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18417380779728).

13431123566652 is an abundant number, since it is smaller than the sum of its proper divisors (23403637992804).

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

13431123566652 is a wasteful number, since it uses less digits than its factorization.

13431123566652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5387500 (or 5387487 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 48.

The spelling of 13431123566652 in words is "thirteen trillion, four hundred thirty-one billion, one hundred twenty-three million, five hundred sixty-six thousand, six hundred fifty-two".