28131111113182 has 32 divisors (see below), whose sum is σ = 52696659110400. Its totient is φ = 10941875674080.

The previous prime is 28131111113081. The next prime is 28131111113207.

28131111113182 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152386513 + ... + 152571004.

It is an arithmetic number, because the mean of its divisors is an integer number (1646770597200).

Almost surely, 2^{28131111113182} is an apocalyptic number.

28131111113182 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28131111113182 is a deficient number, since it is larger than the sum of its proper divisors (24565547997218).

28131111113182 is a wasteful number, since it uses less digits than its factorization.

28131111113182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304958136.

The product of its digits is 2304, while the sum is 34.

It can be divided in two parts, 2813111 and 1113182, that added together give a palindrome (3926293).

The spelling of 28131111113182 in words is "twenty-eight trillion, one hundred thirty-one billion, one hundred eleven million, one hundred thirteen thousand, one hundred eighty-two".