203123043983 has 2 divisors, whose sum is σ = 203123043984. Its totient is φ = 203123043982.

The previous prime is 203123043961. The next prime is 203123044021. The reversal of 203123043983 is 389340321302.

It is an a-pointer prime, because the next prime (203123044021) can be obtained adding 203123043983 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203123043983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203123043913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101561521991 + 101561521992.

It is an arithmetic number, because the mean of its divisors is an integer number (101561521992).

Almost surely, 2^203123043983 is an apocalyptic number.

203123043983 is a deficient number, since it is larger than the sum of its proper divisors (1).

203123043983 is an equidigital number, since it uses as much as digits as its factorization.

203123043983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 38.

The spelling of 203123043983 in words is "two hundred three billion, one hundred twenty-three million, forty-three thousand, nine hundred eighty-three".