2021030234 has 4 divisors (see below), whose sum is σ = 3031545354. Its totient is φ = 1010515116.

The previous prime is 2021030233. The next prime is 2021030239. The reversal of 2021030234 is 4320301202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1980517009 + 40513225 = 44503^2 + 6365^2 .

It is not an unprimeable number, because it can be changed into a prime (2021030233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505257557 + ... + 505257560.

Almost surely, 2^2021030234 is an apocalyptic number.

2021030234 is a deficient number, since it is larger than the sum of its proper divisors (1010515120).

2021030234 is a wasteful number, since it uses less digits than its factorization.

2021030234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010515119.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 2021030234 is about 44955.8698503321. The cubic root of 2021030234 is about 1264.3217335979.

Adding to 2021030234 its reverse (4320301202), we get a palindrome (6341331436).

The spelling of 2021030234 in words is "two billion, twenty-one million, thirty thousand, two hundred thirty-four".