28103111383 has 16 divisors (see below), whose sum is σ = 29945583360. Its totient is φ = 26282128896.

The previous prime is 28103111371. The next prime is 28103111401. The reversal of 28103111383 is 38311130182.

It is a cyclic number.

It is not a de Polignac number, because 28103111383 - 2¹³ = 28103103191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28103111363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2104933 + ... + 2118241.

It is an arithmetic number, because the mean of its divisors is an integer number (1871598960).

Almost surely, 2^28103111383 is an apocalyptic number.

28103111383 is a deficient number, since it is larger than the sum of its proper divisors (1842471977).

28103111383 is a wasteful number, since it uses less digits than its factorization.

28103111383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14106.

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 28103111383 in words is "twenty-eight billion, one hundred three million, one hundred eleven thousand, three hundred eighty-three".