201996101 has 2 divisors, whose sum is σ = 201996102. Its totient is φ = 201996100.

The previous prime is 201996073. The next prime is 201996121. The reversal of 201996101 is 101699102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158105476 + 43890625 = 12574^2 + 6625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201996101 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201996121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100998050 + 100998051.

It is an arithmetic number, because the mean of its divisors is an integer number (100998051).

Almost surely, 2^201996101 is an apocalyptic number.

It is an amenable number.

201996101 is a deficient number, since it is larger than the sum of its proper divisors (1).

201996101 is an equidigital number, since it uses as much as digits as its factorization.

201996101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 29.

The square root of 201996101 is about 14212.5332365486. The cubic root of 201996101 is about 586.7426556973.

The spelling of 201996101 in words is "two hundred one million, nine hundred ninety-six thousand, one hundred one".