203454103019 has 2 divisors, whose sum is σ = 203454103020. Its totient is φ = 203454103018.

The previous prime is 203454102983. The next prime is 203454103031. The reversal of 203454103019 is 910301454302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 203454103019 - 2³⁶ = 134734626283 is a prime.

It is a super-2 number, since 2×203454103019² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (203454100019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101727051509 + 101727051510.

It is an arithmetic number, because the mean of its divisors is an integer number (101727051510).

Almost surely, 2^203454103019 is an apocalyptic number.

203454103019 is a deficient number, since it is larger than the sum of its proper divisors (1).

203454103019 is an equidigital number, since it uses as much as digits as its factorization.

203454103019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 203454103019 in words is "two hundred three billion, four hundred fifty-four million, one hundred three thousand, nineteen".