20958054670123 has 2 divisors, whose sum is σ = 20958054670124. Its totient is φ = 20958054670122.

The previous prime is 20958054670073. The next prime is 20958054670127. The reversal of 20958054670123 is 32107645085902.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20958054670123 is a prime.

It is not a weakly prime, because it can be changed into another prime (20958054670127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10479027335061 + 10479027335062.

It is an arithmetic number, because the mean of its divisors is an integer number (10479027335062).

It is a 1-persistent number, because it is pandigital, but 2⋅20958054670123 = 41916109340246 is not.

Almost surely, 2^{20958054670123} is an apocalyptic number.

20958054670123 is a deficient number, since it is larger than the sum of its proper divisors (1).

20958054670123 is an equidigital number, since it uses as much as digits as its factorization.

20958054670123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 20958054670123 in words is "twenty trillion, nine hundred fifty-eight billion, fifty-four million, six hundred seventy thousand, one hundred twenty-three".