20131032210 has 32 divisors (see below), whose sum is σ = 50415108480. Its totient is φ = 5134871808.

The previous prime is 20131032203. The next prime is 20131032227. The reversal of 20131032210 is 1223013102.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20131032210.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14587015 + ... + 14588394.

It is an arithmetic number, because the mean of its divisors is an integer number (1575472140).

Almost surely, 2^20131032210 is an apocalyptic number.

20131032210 is an abundant number, since it is smaller than the sum of its proper divisors (30284076270).

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

20131032210 is a wasteful number, since it uses less digits than its factorization.

20131032210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29175442.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20131032210 its reverse (1223013102), we get a palindrome (21354045312).

The spelling of 20131032210 in words is "twenty billion, one hundred thirty-one million, thirty-two thousand, two hundred ten".