28631033880103 has 4 divisors (see below), whose sum is σ = 28631975999728. Its totient is φ = 28630091760480.

The previous prime is 28631033880037. The next prime is 28631033880107. The reversal of 28631033880103 is 30108833013682.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28631033880103 is a prime.

It is a super-2 number, since 2×28631033880103² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28631033880107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 471014226 + ... + 471075007.

It is an arithmetic number, because the mean of its divisors is an integer number (7157993999932).

Almost surely, 2^{28631033880103} is an apocalyptic number.

28631033880103 is a deficient number, since it is larger than the sum of its proper divisors (942119625).

28631033880103 is an equidigital number, since it uses as much as digits as its factorization.

28631033880103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942119624.

The product of its (nonzero) digits is 497664, while the sum is 46.

Adding to 28631033880103 its reverse (30108833013682), we get a palindrome (58739866893785).

The spelling of 28631033880103 in words is "twenty-eight trillion, six hundred thirty-one billion, thirty-three million, eight hundred eighty thousand, one hundred three".