20111033103 has 12 divisors (see below), whose sum is σ = 31192623000. Its totient is φ = 11492018832.

The previous prime is 20111033101. The next prime is 20111033141. The reversal of 20111033103 is 30133011102.

It is not a de Polignac number, because 20111033103 - 2¹ = 20111033101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111033101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68404728 + ... + 68405021.

It is an arithmetic number, because the mean of its divisors is an integer number (2599385250).

Almost surely, 2^20111033103 is an apocalyptic number.

20111033103 is a deficient number, since it is larger than the sum of its proper divisors (11081589897).

20111033103 is a wasteful number, since it uses less digits than its factorization.

20111033103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136809766 (or 136809759 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 20111033103 its reverse (30133011102), we get a palindrome (50244044205).

The spelling of 20111033103 in words is "twenty billion, one hundred eleven million, thirty-three thousand, one hundred three".