2121032030 has 64 divisors (see below), whose sum is σ = 4471225920. Its totient is φ = 717133824.

The previous prime is 2121032021. The next prime is 2121032033. The reversal of 2121032030 is 302301212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2121031996 and 2121032014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121032033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68801 + ... + 94739.

It is an arithmetic number, because the mean of its divisors is an integer number (69862905).

Almost surely, 2^2121032030 is an apocalyptic number.

2121032030 is an abundant number, since it is smaller than the sum of its proper divisors (2350193890).

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

2121032030 is a wasteful number, since it uses less digits than its factorization.

2121032030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26013.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2121032030 is about 46054.6634989335. The cubic root of 2121032030 is about 1284.8400796205.

Adding to 2121032030 its reverse (302301212), we get a palindrome (2423333242).

The spelling of 2121032030 in words is "two billion, one hundred twenty-one million, thirty-two thousand, thirty".