20020312230 has 64 divisors (see below), whose sum is σ = 49097594880. Its totient is φ = 5222335104.

The previous prime is 20020312219. The next prime is 20020312231. The reversal of 20020312230 is 3221302002.

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 (20020312231) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 4381407 + ... + 4385973.

It is an arithmetic number, because the mean of its divisors is an integer number (767149920).

Almost surely, 2^20020312230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20020312230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24548797440).

20020312230 is an abundant number, since it is smaller than the sum of its proper divisors (29077282650).

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

20020312230 is a wasteful number, since it uses less digits than its factorization.

20020312230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7733.

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

Adding to 20020312230 its reverse (3221302002), we get a palindrome (23241614232).

The spelling of 20020312230 in words is "twenty billion, twenty million, three hundred twelve thousand, two hundred thirty".