2121343030 has 8 divisors (see below), whose sum is σ = 3818417472. Its totient is φ = 848537208.

The previous prime is 2121343019. The next prime is 2121343031. The reversal of 2121343030 is 303431212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2121342989 and 2121343007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121343031) 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, 106067142 + ... + 106067161.

It is an arithmetic number, because the mean of its divisors is an integer number (477302184).

Almost surely, 2^2121343030 is an apocalyptic number.

2121343030 is a deficient number, since it is larger than the sum of its proper divisors (1697074442).

2121343030 is a wasteful number, since it uses less digits than its factorization.

2121343030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212134310.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2121343030 is about 46058.0397976293. The cubic root of 2121343030 is about 1284.9028738532.

Adding to 2121343030 its reverse (303431212), we get a palindrome (2424774242).

The spelling of 2121343030 in words is "two billion, one hundred twenty-one million, three hundred forty-three thousand, thirty".