203111241010387 has 2 divisors, whose sum is σ = 203111241010388. Its totient is φ = 203111241010386.

The previous prime is 203111241010273. The next prime is 203111241010519. The reversal of 203111241010387 is 783010142111302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203111241010387 is a prime.

It is not a weakly prime, because it can be changed into another prime (203111241014387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101555620505193 + 101555620505194.

It is an arithmetic number, because the mean of its divisors is an integer number (101555620505194).

Almost surely, 2^{203111241010387} is an apocalyptic number.

203111241010387 is a deficient number, since it is larger than the sum of its proper divisors (1).

203111241010387 is an equidigital number, since it uses as much as digits as its factorization.

203111241010387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 34.

Adding to 203111241010387 its reverse (783010142111302), we get a palindrome (986121383121689).

The spelling of 203111241010387 in words is "two hundred three trillion, one hundred eleven billion, two hundred forty-one million, ten thousand, three hundred eighty-seven".