2140210323205 has 4 divisors (see below), whose sum is σ = 2568252387852. Its totient is φ = 1712168258560.

The previous prime is 2140210323193. The next prime is 2140210323233. The reversal of 2140210323205 is 5023230120412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1557319301476 + 582891021729 = 1247926^2 + 763473^2 .

It is not a de Polignac number, because 2140210323205 - 2¹³ = 2140210315013 is a prime.

It is a super-2 number, since 2×2140210323205² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2140210323205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214021032316 + ... + 214021032325.

It is an arithmetic number, because the mean of its divisors is an integer number (642063096963).

Almost surely, 2^{2140210323205} is an apocalyptic number.

It is an amenable number.

2140210323205 is a deficient number, since it is larger than the sum of its proper divisors (428042064647).

2140210323205 is an equidigital number, since it uses as much as digits as its factorization.

2140210323205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428042064646.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 2140210323205 its reverse (5023230120412), we get a palindrome (7163440443617).

The spelling of 2140210323205 in words is "two trillion, one hundred forty billion, two hundred ten million, three hundred twenty-three thousand, two hundred five".