20212320030 has 32 divisors (see below), whose sum is σ = 55439506944. Its totient is φ = 4619958816.

The previous prime is 20212319987. The next prime is 20212320109. The reversal of 20212320030 is 3002321202.

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

It is a junction number, because it is equal to n+sod(n) for n = 20212319991 and 20212320009.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48124362 + ... + 48124781.

It is an arithmetic number, because the mean of its divisors is an integer number (1732484592).

Almost surely, 2^20212320030 is an apocalyptic number.

20212320030 is an abundant number, since it is smaller than the sum of its proper divisors (35227186914).

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

20212320030 is a wasteful number, since it uses less digits than its factorization.

20212320030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96249160.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20212320030 its reverse (3002321202), we get a palindrome (23214641232).

The spelling of 20212320030 in words is "twenty billion, two hundred twelve million, three hundred twenty thousand, thirty".