203312221012937 has 2 divisors, whose sum is σ = 203312221012938. Its totient is φ = 203312221012936.

The previous prime is 203312221012903. The next prime is 203312221013021. The reversal of 203312221012937 is 739210122213302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198950489010361 + 4361732002576 = 14104981^2 + 2088476^2 .

It is a cyclic number.

It is not a de Polignac number, because 203312221012937 - 2⁴⁴ = 185720034968521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 203312221012937.

It is not a weakly prime, because it can be changed into another prime (203312221014937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101656110506468 + 101656110506469.

It is an arithmetic number, because the mean of its divisors is an integer number (101656110506469).

Almost surely, 2^{203312221012937} is an apocalyptic number.

It is an amenable number.

203312221012937 is a deficient number, since it is larger than the sum of its proper divisors (1).

203312221012937 is an equidigital number, since it uses as much as digits as its factorization.

203312221012937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 38.

The spelling of 203312221012937 in words is "two hundred three trillion, three hundred twelve billion, two hundred twenty-one million, twelve thousand, nine hundred thirty-seven".