2133421404020 has 48 divisors (see below), whose sum is σ = 4541815741008. Its totient is φ = 841630694400.

The previous prime is 2133421403963. The next prime is 2133421404029. The reversal of 2133421404020 is 204041243312.

It can be written as a sum of positive squares in 8 ways, for example, as 5493181456 + 2127928222564 = 74116^2 + 1458742^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133421404029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36817070 + ... + 36874970.

It is an arithmetic number, because the mean of its divisors is an integer number (94621161271).

Almost surely, 2^{2133421404020} is an apocalyptic number.

2133421404020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2133421404020 is an abundant number, since it is smaller than the sum of its proper divisors (2408394336988).

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

2133421404020 is a wasteful number, since it uses less digits than its factorization.

2133421404020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83220 (or 83218 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 2133421404020 its reverse (204041243312), we get a palindrome (2337462647332).

The spelling of 2133421404020 in words is "two trillion, one hundred thirty-three billion, four hundred twenty-one million, four hundred four thousand, twenty".