203412278843 has 2 divisors, whose sum is σ = 203412278844. Its totient is φ = 203412278842.

The previous prime is 203412278791. The next prime is 203412278851. The reversal of 203412278843 is 348872214302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203412278843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203412278794 and 203412278803.

It is not a weakly prime, because it can be changed into another prime (203412278863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101706139421 + 101706139422.

It is an arithmetic number, because the mean of its divisors is an integer number (101706139422).

Almost surely, 2^203412278843 is an apocalyptic number.

203412278843 is a deficient number, since it is larger than the sum of its proper divisors (1).

203412278843 is an equidigital number, since it uses as much as digits as its factorization.

203412278843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 516096, while the sum is 44.

The spelling of 203412278843 in words is "two hundred three billion, four hundred twelve million, two hundred seventy-eight thousand, eight hundred forty-three".