103990256243 has 2 divisors, whose sum is σ = 103990256244. Its totient is φ = 103990256242.

The previous prime is 103990256191. The next prime is 103990256263. The reversal of 103990256243 is 342652099301.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 103990256243 - 2³⁰ = 102916514419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103990256194 and 103990256203.

It is not a weakly prime, because it can be changed into another prime (103990256263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51995128121 + 51995128122.

It is an arithmetic number, because the mean of its divisors is an integer number (51995128122).

Almost surely, 2^103990256243 is an apocalyptic number.

103990256243 is a deficient number, since it is larger than the sum of its proper divisors (1).

103990256243 is an equidigital number, since it uses as much as digits as its factorization.

103990256243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 44.

The spelling of 103990256243 in words is "one hundred three billion, nine hundred ninety million, two hundred fifty-six thousand, two hundred forty-three".