28112330103 has 32 divisors (see below), whose sum is σ = 44130707712. Its totient is φ = 15693388800.

The previous prime is 28112330087. The next prime is 28112330111. The reversal of 28112330103 is 30103321182.

It is not a de Polignac number, because 28112330103 - 2⁴ = 28112330087 is a prime.

It is a super-3 number, since 3×28112330103³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28112330153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130183 + ... + 270503.

It is an arithmetic number, because the mean of its divisors is an integer number (1379084616).

Almost surely, 2^28112330103 is an apocalyptic number.

28112330103 is a deficient number, since it is larger than the sum of its proper divisors (16018377609).

28112330103 is a wasteful number, since it uses less digits than its factorization.

28112330103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140815.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 28112330103 its reverse (30103321182), we get a palindrome (58215651285).

The spelling of 28112330103 in words is "twenty-eight billion, one hundred twelve million, three hundred thirty thousand, one hundred three".