20343143502132 has 192 divisors, whose sum is σ = 52326347673600. Its totient is φ = 6100151616000.

The previous prime is 20343143502083. The next prime is 20343143502167. The reversal of 20343143502132 is 23120534134302.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 20343143502093 and 20343143502102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18343681594 + ... + 18343682702.

It is an arithmetic number, because the mean of its divisors is an integer number (272533060800).

Almost surely, 2^{20343143502132} is an apocalyptic number.

20343143502132 is a gapful number since it is divisible by the number (22) 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 20343143502132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26163173836800).

20343143502132 is an abundant number, since it is smaller than the sum of its proper divisors (31983204171468).

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

20343143502132 is a wasteful number, since it uses less digits than its factorization.

20343143502132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3318 (or 3316 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 20343143502132 its reverse (23120534134302), we get a palindrome (43463677636434).

The spelling of 20343143502132 in words is "twenty trillion, three hundred forty-three billion, one hundred forty-three million, five hundred two thousand, one hundred thirty-two".