201031203101 has 2 divisors, whose sum is σ = 201031203102. Its totient is φ = 201031203100.

The previous prime is 201031203097. The next prime is 201031203133. The reversal of 201031203101 is 101302130102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192610387876 + 8420815225 = 438874^2 + 91765^2 .

It is a cyclic number.

It is not a de Polignac number, because 201031203101 - 2² = 201031203097 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201031203161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100515601550 + 100515601551.

It is an arithmetic number, because the mean of its divisors is an integer number (100515601551).

Almost surely, 2^201031203101 is an apocalyptic number.

It is an amenable number.

201031203101 is a deficient number, since it is larger than the sum of its proper divisors (1).

201031203101 is an equidigital number, since it uses as much as digits as its factorization.

201031203101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 201031203101 its reverse (101302130102), we get a palindrome (302333333203).

The spelling of 201031203101 in words is "two hundred one billion, thirty-one million, two hundred three thousand, one hundred one".