2021031430 has 32 divisors (see below), whose sum is σ = 4035847680. Its totient is φ = 722461920.

The previous prime is 2021031377. The next prime is 2021031469. The reversal of 2021031430 is 341301202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149214 + ... + 162193.

It is an arithmetic number, because the mean of its divisors is an integer number (126120240).

Almost surely, 2^2021031430 is an apocalyptic number.

2021031430 is a deficient number, since it is larger than the sum of its proper divisors (2014816250).

2021031430 is a wasteful number, since it uses less digits than its factorization.

2021031430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311484.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2021031430 is about 44955.8831522638. The cubic root of 2021031430 is about 1264.3219829969.

Adding to 2021031430 its reverse (341301202), we get a palindrome (2362332632).

The spelling of 2021031430 in words is "two billion, twenty-one million, thirty-one thousand, four hundred thirty".