2134344021420 has 96 divisors (see below), whose sum is σ = 6436594741248. Its totient is φ = 525317674752.

The previous prime is 2134344021413. The next prime is 2134344021421. The reversal of 2134344021420 is 241204434312.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (2134344021421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6969157 + ... + 7268963.

It is an arithmetic number, because the mean of its divisors is an integer number (67047861888).

Almost surely, 2^{2134344021420} is an apocalyptic number.

2134344021420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2134344021420 is an abundant number, since it is smaller than the sum of its proper divisors (4302250719828).

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

2134344021420 is a wasteful number, since it uses less digits than its factorization.

2134344021420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308959 (or 308957 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 2134344021420 its reverse (241204434312), we get a palindrome (2375548455732).

The spelling of 2134344021420 in words is "two trillion, one hundred thirty-four billion, three hundred forty-four million, twenty-one thousand, four hundred twenty".