20352130011973 has 2 divisors, whose sum is σ = 20352130011974. Its totient is φ = 20352130011972.

The previous prime is 20352130011971. The next prime is 20352130012003. The reversal of 20352130011973 is 37911003125302.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19290700525924 + 1061429486049 = 4392118^2 + 1030257^2 .

It is a cyclic number.

It is not a de Polignac number, because 20352130011973 - 2¹ = 20352130011971 is a prime.

Together with 20352130011971, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20352130011971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10176065005986 + 10176065005987.

It is an arithmetic number, because the mean of its divisors is an integer number (10176065005987).

Almost surely, 2^{20352130011973} is an apocalyptic number.

It is an amenable number.

20352130011973 is a deficient number, since it is larger than the sum of its proper divisors (1).

20352130011973 is an equidigital number, since it uses as much as digits as its factorization.

20352130011973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 37.

The spelling of 20352130011973 in words is "twenty trillion, three hundred fifty-two billion, one hundred thirty million, eleven thousand, nine hundred seventy-three".