203110122997 has 2 divisors, whose sum is σ = 203110122998. Its totient is φ = 203110122996.

The previous prime is 203110122983. The next prime is 203110123033. The reversal of 203110122997 is 799221011302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200232980676 + 2877142321 = 447474^2 + 53639^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203110122997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203110122937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101555061498 + 101555061499.

It is an arithmetic number, because the mean of its divisors is an integer number (101555061499).

Almost surely, 2^203110122997 is an apocalyptic number.

It is an amenable number.

203110122997 is a deficient number, since it is larger than the sum of its proper divisors (1).

203110122997 is an equidigital number, since it uses as much as digits as its factorization.

203110122997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 37.

The spelling of 203110122997 in words is "two hundred three billion, one hundred ten million, one hundred twenty-two thousand, nine hundred ninety-seven".