20013203210 has 128 divisors (see below), whose sum is σ = 50471092224. Its totient is φ = 5507631360.

The previous prime is 20013203183. The next prime is 20013203261. The reversal of 20013203210 is 1230231002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 186767 + ... + 273693.

It is an arithmetic number, because the mean of its divisors is an integer number (394305408).

Almost surely, 2^20013203210 is an apocalyptic number.

20013203210 is an abundant number, since it is smaller than the sum of its proper divisors (30457889014).

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

20013203210 is a wasteful number, since it uses less digits than its factorization.

20013203210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86988.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20013203210 its reverse (1230231002), we get a palindrome (21243434212).

The spelling of 20013203210 in words is "twenty billion, thirteen million, two hundred three thousand, two hundred ten".