2121303300032 has 56 divisors (see below), whose sum is σ = 4835233412064. Its totient is φ = 904515075072.

The previous prime is 2121303300023. The next prime is 2121303300047. The reversal of 2121303300032 is 2300033031212.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×2121303300032² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2121303299977 and 2121303300013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11929643 + ... + 12106154.

Almost surely, 2^{2121303300032} is an apocalyptic number.

It is an amenable number.

2121303300032 is an abundant number, since it is smaller than the sum of its proper divisors (2713930112032).

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

2121303300032 is a wasteful number, since it uses less digits than its factorization.

2121303300032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24036013 (or 24036003 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 2121303300032 its reverse (2300033031212), we get a palindrome (4421336331244).

The spelling of 2121303300032 in words is "two trillion, one hundred twenty-one billion, three hundred three million, three hundred thousand, thirty-two".