2131011205 has 8 divisors (see below), whose sum is σ = 2645393400. Its totient is φ = 1646022336.

The previous prime is 2131011167. The next prime is 2131011229. The reversal of 2131011205 is 5021101312.

It can be written as a sum of positive squares in 4 ways, for example, as 450241 + 2130560964 = 671^2 + 46158^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2131011205 - 2¹³ = 2131003013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7348170 + ... + 7348459.

It is an arithmetic number, because the mean of its divisors is an integer number (330674175).

Almost surely, 2^2131011205 is an apocalyptic number.

It is an amenable number.

2131011205 is a deficient number, since it is larger than the sum of its proper divisors (514382195).

2131011205 is a wasteful number, since it uses less digits than its factorization.

2131011205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14696663.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 2131011205 is about 46162.8769142479. The cubic root of 2131011205 is about 1286.8519285961.

Adding to 2131011205 its reverse (5021101312), we get a palindrome (7152112517).

The spelling of 2131011205 in words is "two billion, one hundred thirty-one million, eleven thousand, two hundred five".