20211030012 has 24 divisors (see below), whose sum is σ = 47164351696. Its totient is φ = 6736255488.

The previous prime is 20211029983. The next prime is 20211030043. The reversal of 20211030012 is 21003011202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 20211030012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23148 + ... + 202380.

Almost surely, 2^20211030012 is an apocalyptic number.

It is an amenable number.

20211030012 is an abundant number, since it is smaller than the sum of its proper divisors (26953321684).

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

20211030012 is a wasteful number, since it uses less digits than its factorization.

20211030012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188637 (or 188635 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20211030012 its reverse (21003011202), we get a palindrome (41214041214).

The spelling of 20211030012 in words is "twenty billion, two hundred eleven million, thirty thousand, twelve".