20210101030 has 16 divisors (see below), whose sum is σ = 41575065120. Its totient is φ = 6929177472.

The previous prime is 20210101001. The next prime is 20210101031. The reversal of 20210101030 is 3010101202.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 20210100998 and 20210101016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210101031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144357795 + ... + 144357934.

It is an arithmetic number, because the mean of its divisors is an integer number (2598441570).

Almost surely, 2^20210101030 is an apocalyptic number.

20210101030 is an abundant number, since it is smaller than the sum of its proper divisors (21364964090).

20210101030 is a wasteful number, since it uses less digits than its factorization.

20210101030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288715743.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 20210101030 its reverse (3010101202), we get a palindrome (23220202232).

The spelling of 20210101030 in words is "twenty billion, two hundred ten million, one hundred one thousand, thirty".