2021142030 has 64 divisors (see below), whose sum is σ = 5014130688. Its totient is φ = 520865280.

The previous prime is 2021141989. The next prime is 2021142031. The reversal of 2021142030 is 302411202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021142031) 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, 1136502 + ... + 1138278.

It is an arithmetic number, because the mean of its divisors is an integer number (78345792).

Almost surely, 2^2021142030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2021142030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2507065344).

2021142030 is an abundant number, since it is smaller than the sum of its proper divisors (2992988658).

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

2021142030 is a wasteful number, since it uses less digits than its factorization.

2021142030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3041.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2021142030 is about 44957.1132302776. The cubic root of 2021142030 is about 1264.3450457193.

Adding to 2021142030 its reverse (302411202), we get a palindrome (2323553232).

The spelling of 2021142030 in words is "two billion, twenty-one million, one hundred forty-two thousand, thirty".