20213032230 has 48 divisors (see below), whose sum is σ = 52573766544. Its totient is φ = 5388102720.

The previous prime is 20213032159. The next prime is 20213032237. The reversal of 20213032230 is 3223031202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213032237) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 204672 + ... + 286908.

It is an arithmetic number, because the mean of its divisors is an integer number (1095286803).

Almost surely, 2^20213032230 is an apocalyptic number.

20213032230 is an abundant number, since it is smaller than the sum of its proper divisors (32360734314).

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

20213032230 is a wasteful number, since it uses less digits than its factorization.

20213032230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84981 (or 84978 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20213032230 its reverse (3223031202), we get a palindrome (23436063432).

The spelling of 20213032230 in words is "twenty billion, two hundred thirteen million, thirty-two thousand, two hundred thirty".