20343034422140 has 48 divisors (see below), whose sum is σ = 43642452575232. Its totient is φ = 7961683684416.

The previous prime is 20343034422119. The next prime is 20343034422167. The reversal of 20343034422140 is 4122443034302.

It is a junction number, because it is equal to n+sod(n) for n = 20343034422097 and 20343034422106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132704 + ... + 6379943.

It is an arithmetic number, because the mean of its divisors is an integer number (909217761984).

Almost surely, 2^{20343034422140} is an apocalyptic number.

20343034422140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20343034422140 is an abundant number, since it is smaller than the sum of its proper divisors (23299418153092).

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

20343034422140 is a wasteful number, since it uses less digits than its factorization.

20343034422140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6516026 (or 6516024 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 20343034422140 its reverse (4122443034302), we get a palindrome (24465477456442).

The spelling of 20343034422140 in words is "twenty trillion, three hundred forty-three billion, thirty-four million, four hundred twenty-two thousand, one hundred forty".