340220121010420 has 48 divisors (see below), whose sum is σ = 816747376273920. Its totient is φ = 116615600653824.

The previous prime is 340220121010397. The next prime is 340220121010477. The reversal of 340220121010420 is 24010121022043.

It is a junction number, because it is equal to n+sod(n) for n = 340220121010391 and 340220121010400.

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, 325496965 + ... + 326540524.

It is an arithmetic number, because the mean of its divisors is an integer number (17015570339040).

Almost surely, 2^{340220121010420} is an apocalyptic number.

It is an amenable number.

340220121010420 is an abundant number, since it is smaller than the sum of its proper divisors (476527255263500).

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

340220121010420 is a wasteful number, since it uses less digits than its factorization.

340220121010420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652041232 (or 652041230 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 340220121010420 its reverse (24010121022043), we get a palindrome (364230242032463).

The spelling of 340220121010420 in words is "three hundred forty trillion, two hundred twenty billion, one hundred twenty-one million, ten thousand, four hundred twenty".