21342025100312 has 64 divisors (see below), whose sum is σ = 46010279040000. Its totient is φ = 9091203682176.

The previous prime is 21342025100293. The next prime is 21342025100327. The reversal of 21342025100312 is 21300152024312.

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, 9786014 + ... + 11766482.

It is an arithmetic number, because the mean of its divisors is an integer number (718910610000).

Almost surely, 2^{21342025100312} is an apocalyptic number.

It is an amenable number.

21342025100312 is an abundant number, since it is smaller than the sum of its proper divisors (24668253939688).

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

21342025100312 is a wasteful number, since it uses less digits than its factorization.

21342025100312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1981648 (or 1981644 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 21342025100312 its reverse (21300152024312), we get a palindrome (42642177124624).

The spelling of 21342025100312 in words is "twenty-one trillion, three hundred forty-two billion, twenty-five million, one hundred thousand, three hundred twelve".