2123131120210 has 16 divisors (see below), whose sum is σ = 3828497132376. Its totient is φ = 847727755648.

The previous prime is 2123131120199. The next prime is 2123131120213. The reversal of 2123131120210 is 120211313212.

It can be written as a sum of positive squares in 4 ways, for example, as 647321620969 + 1475809499241 = 804563^2 + 1214829^2 .

It is not an unprimeable number, because it can be changed into a prime (2123131120213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190580707 + ... + 190591846.

Almost surely, 2^{2123131120210} is an apocalyptic number.

2123131120210 is a deficient number, since it is larger than the sum of its proper divisors (1705366012166).

2123131120210 is a wasteful number, since it uses less digits than its factorization.

2123131120210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381173117.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2123131120210 its reverse (120211313212), we get a palindrome (2243342433422).

The spelling of 2123131120210 in words is "two trillion, one hundred twenty-three billion, one hundred thirty-one million, one hundred twenty thousand, two hundred ten".