203204409839953 has 2 divisors, whose sum is σ = 203204409839954. Its totient is φ = 203204409839952.

The previous prime is 203204409839911. The next prime is 203204409839969. The reversal of 203204409839953 is 359938904402302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199675467251649 + 3528942588304 = 14130657^2 + 1878548^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203204409839953 is a prime.

It is a super-2 number, since 2×203204409839953² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203204409839891 and 203204409839900.

It is not a weakly prime, because it can be changed into another prime (203204409839903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101602204919976 + 101602204919977.

It is an arithmetic number, because the mean of its divisors is an integer number (101602204919977).

Almost surely, 2^{203204409839953} is an apocalyptic number.

It is an amenable number.

203204409839953 is a deficient number, since it is larger than the sum of its proper divisors (1).

203204409839953 is an equidigital number, since it uses as much as digits as its factorization.

203204409839953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50388480, while the sum is 61.

The spelling of 203204409839953 in words is "two hundred three trillion, two hundred four billion, four hundred nine million, eight hundred thirty-nine thousand, nine hundred fifty-three".