203112304413377 has 2 divisors, whose sum is σ = 203112304413378. Its totient is φ = 203112304413376.

The previous prime is 203112304413349. The next prime is 203112304413419. The reversal of 203112304413377 is 773314403211302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193334119127296 + 9778185286081 = 13904464^2 + 3127009^2 .

It is a cyclic number.

It is not a de Polignac number, because 203112304413377 - 2²⁰ = 203112303364801 is a prime.

It is a super-2 number, since 2×203112304413377² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (203112304413677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101556152206688 + 101556152206689.

It is an arithmetic number, because the mean of its divisors is an integer number (101556152206689).

Almost surely, 2^{203112304413377} is an apocalyptic number.

It is an amenable number.

203112304413377 is a deficient number, since it is larger than the sum of its proper divisors (1).

203112304413377 is an equidigital number, since it uses as much as digits as its factorization.

203112304413377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 41.

Adding to 203112304413377 its reverse (773314403211302), we get a palindrome (976426707624679).

The spelling of 203112304413377 in words is "two hundred three trillion, one hundred twelve billion, three hundred four million, four hundred thirteen thousand, three hundred seventy-seven".