203230121100313 has 2 divisors, whose sum is σ = 203230121100314. Its totient is φ = 203230121100312.

The previous prime is 203230121100289. The next prime is 203230121100329. The reversal of 203230121100313 is 313001121032302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201174877733769 + 2055243366544 = 14183613^2 + 1433612^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203230121100313 is a prime.

It is not a weakly prime, because it can be changed into another prime (203230121100373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101615060550156 + 101615060550157.

It is an arithmetic number, because the mean of its divisors is an integer number (101615060550157).

Almost surely, 2^{203230121100313} is an apocalyptic number.

It is an amenable number.

203230121100313 is a deficient number, since it is larger than the sum of its proper divisors (1).

203230121100313 is an equidigital number, since it uses as much as digits as its factorization.

203230121100313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 203230121100313 its reverse (313001121032302), we get a palindrome (516231242132615).

The spelling of 203230121100313 in words is "two hundred three trillion, two hundred thirty billion, one hundred twenty-one million, one hundred thousand, three hundred thirteen".