20201200110997 has 2 divisors, whose sum is σ = 20201200110998. Its totient is φ = 20201200110996.

The previous prime is 20201200110991. The next prime is 20201200111021. The reversal of 20201200110997 is 79901100210202.

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., 14269120947601 + 5932079163396 = 3777449^2 + 2435586^2 .

It is a cyclic number.

It is not a de Polignac number, because 20201200110997 - 2³¹ = 20199052627349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20201200110991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100600055498 + 10100600055499.

It is an arithmetic number, because the mean of its divisors is an integer number (10100600055499).

Almost surely, 2^{20201200110997} is an apocalyptic number.

It is an amenable number.

20201200110997 is a deficient number, since it is larger than the sum of its proper divisors (1).

20201200110997 is an equidigital number, since it uses as much as digits as its factorization.

20201200110997 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 34.

The spelling of 20201200110997 in words is "twenty trillion, two hundred one billion, two hundred million, one hundred ten thousand, nine hundred ninety-seven".