2131020210 has 128 divisors (see below), whose sum is σ = 5967675648. Its totient is φ = 481280000.

The previous prime is 2131020169. The next prime is 2131020211. The reversal of 2131020210 is 120201312.

It is not an unprimeable number, because it can be changed into a prime (2131020211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 564730 + ... + 568490.

It is an arithmetic number, because the mean of its divisors is an integer number (46622466).

Almost surely, 2^2131020210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2131020210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2983837824).

2131020210 is an abundant number, since it is smaller than the sum of its proper divisors (3836655438).

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

2131020210 is a wasteful number, since it uses less digits than its factorization.

2131020210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3900.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2131020210 is about 46162.9744492272. The cubic root of 2131020210 is about 1286.8537412074.

Adding to 2131020210 its reverse (120201312), we get a palindrome (2251221522).

The spelling of 2131020210 in words is "two billion, one hundred thirty-one million, twenty thousand, two hundred ten".