2102421323320 has 16 divisors (see below), whose sum is σ = 4730447977560. Its totient is φ = 840968529312.

The previous prime is 2102421323293. The next prime is 2102421323323. The reversal of 2102421323320 is 233231242012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102421323323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26280266502 + ... + 26280266581.

Almost surely, 2^{2102421323320} is an apocalyptic number.

2102421323320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102421323320 is an abundant number, since it is smaller than the sum of its proper divisors (2628026654240).

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

2102421323320 is a wasteful number, since it uses less digits than its factorization.

2102421323320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52560533094 (or 52560533090 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 2102421323320 its reverse (233231242012), we get a palindrome (2335652565332).

The spelling of 2102421323320 in words is "two trillion, one hundred two billion, four hundred twenty-one million, three hundred twenty-three thousand, three hundred twenty".