2130213312173 has 2 divisors, whose sum is σ = 2130213312174. Its totient is φ = 2130213312172.

The previous prime is 2130213312121. The next prime is 2130213312181. The reversal of 2130213312173 is 3712133120312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1932150040324 + 198063271849 = 1390018^2 + 445043^2 .

It is a cyclic number.

It is not a de Polignac number, because 2130213312173 - 2⁸ = 2130213311917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2130213312193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065106656086 + 1065106656087.

It is an arithmetic number, because the mean of its divisors is an integer number (1065106656087).

Almost surely, 2^{2130213312173} is an apocalyptic number.

It is an amenable number.

2130213312173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130213312173 is an equidigital number, since it uses as much as digits as its factorization.

2130213312173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

Adding to 2130213312173 its reverse (3712133120312), we get a palindrome (5842346432485).

The spelling of 2130213312173 in words is "two trillion, one hundred thirty billion, two hundred thirteen million, three hundred twelve thousand, one hundred seventy-three".