2134202021340 has 48 divisors (see below), whose sum is σ = 6051408276480. Its totient is φ = 561916480320.

The previous prime is 2134202021309. The next prime is 2134202021387. The reversal of 2134202021340 is 431202024312.

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 2134202021340.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225122056 + ... + 225131535.

It is an arithmetic number, because the mean of its divisors is an integer number (126071005760).

Almost surely, 2^{2134202021340} is an apocalyptic number.

2134202021340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2134202021340 is an abundant number, since it is smaller than the sum of its proper divisors (3917206255140).

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

2134202021340 is a wasteful number, since it uses less digits than its factorization.

2134202021340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450253682 (or 450253680 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 2134202021340 its reverse (431202024312), we get a palindrome (2565404045652).

The spelling of 2134202021340 in words is "two trillion, one hundred thirty-four billion, two hundred two million, twenty-one thousand, three hundred forty".