20055021371923 has 2 divisors, whose sum is σ = 20055021371924. Its totient is φ = 20055021371922.

The previous prime is 20055021371921. The next prime is 20055021372059. The reversal of 20055021371923 is 32917312055002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20055021371923 - 2¹ = 20055021371921 is a prime.

Together with 20055021371921, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20055021371921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10027510685961 + 10027510685962.

It is an arithmetic number, because the mean of its divisors is an integer number (10027510685962).

Almost surely, 2^{20055021371923} is an apocalyptic number.

20055021371923 is a deficient number, since it is larger than the sum of its proper divisors (1).

20055021371923 is an equidigital number, since it uses as much as digits as its factorization.

20055021371923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 113400, while the sum is 40.

The spelling of 20055021371923 in words is "twenty trillion, fifty-five billion, twenty-one million, three hundred seventy-one thousand, nine hundred twenty-three".