2121300030132 has 36 divisors (see below), whose sum is σ = 5367663573636. Its totient is φ = 706376252160.

The previous prime is 2121300030119. The next prime is 2121300030149. The reversal of 2121300030132 is 2310300031212.

It can be written as a sum of positive squares in 2 ways, for example, as 1809708324516 + 311591705616 = 1345254^2 + 558204^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30120919 + ... + 30191262.

Almost surely, 2^{2121300030132} is an apocalyptic number.

It is an amenable number.

2121300030132 is an abundant number, since it is smaller than the sum of its proper divisors (3246363543504).

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

2121300030132 is a wasteful number, since it uses less digits than its factorization.

2121300030132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60313168 (or 60313163 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 2121300030132 its reverse (2310300031212), we get a palindrome (4431600061344).

The spelling of 2121300030132 in words is "two trillion, one hundred twenty-one billion, three hundred million, thirty thousand, one hundred thirty-two".