20093597971 has 2 divisors, whose sum is σ = 20093597972. Its totient is φ = 20093597970.

The previous prime is 20093597969. The next prime is 20093597999. The reversal of 20093597971 is 17979539002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20093597971 - 2¹ = 20093597969 is a prime.

Together with 20093597969, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20093597921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10046798985 + 10046798986.

It is an arithmetic number, because the mean of its divisors is an integer number (10046798986).

Almost surely, 2^20093597971 is an apocalyptic number.

20093597971 is a deficient number, since it is larger than the sum of its proper divisors (1).

20093597971 is an equidigital number, since it uses as much as digits as its factorization.

20093597971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1071630, while the sum is 52.

The spelling of 20093597971 in words is "twenty billion, ninety-three million, five hundred ninety-seven thousand, nine hundred seventy-one".