34143121021220 has 24 divisors (see below), whose sum is σ = 71701565308800. Its totient is φ = 13657055805792.

The previous prime is 34143121021213. The next prime is 34143121021231. The reversal of 34143121021220 is 2212012134143.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 34143121021220.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10579730 + ... + 13424489.

It is an arithmetic number, because the mean of its divisors is an integer number (2987565221200).

Almost surely, 2^{34143121021220} is an apocalyptic number.

It is an amenable number.

34143121021220 is an abundant number, since it is smaller than the sum of its proper divisors (37558444287580).

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

34143121021220 is a wasteful number, since it uses less digits than its factorization.

34143121021220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24075347 (or 24075345 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 34143121021220 its reverse (2212012134143), we get a palindrome (36355133155363).

The spelling of 34143121021220 in words is "thirty-four trillion, one hundred forty-three billion, one hundred twenty-one million, twenty-one thousand, two hundred twenty".