203104433610121 has 2 divisors, whose sum is σ = 203104433610122. Its totient is φ = 203104433610120.

The previous prime is 203104433610053. The next prime is 203104433610251. The reversal of 203104433610121 is 121016334401302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115225733205625 + 87878700404496 = 10734325^2 + 9374364^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203104433610121 is a prime.

It is a super-3 number, since 3×203104433610121³ (a number of 44 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (203104430610121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101552216805060 + 101552216805061.

It is an arithmetic number, because the mean of its divisors is an integer number (101552216805061).

Almost surely, 2^{203104433610121} is an apocalyptic number.

It is an amenable number.

203104433610121 is a deficient number, since it is larger than the sum of its proper divisors (1).

203104433610121 is an equidigital number, since it uses as much as digits as its factorization.

203104433610121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 203104433610121 in words is "two hundred three trillion, one hundred four billion, four hundred thirty-three million, six hundred ten thousand, one hundred twenty-one".