131230103228 has 18 divisors (see below), whose sum is σ = 267146996256. Its totient is φ = 56241472728.

The previous prime is 131230103227. The next prime is 131230103233. The reversal of 131230103228 is 822301032131.

It is a junction number, because it is equal to n+sod(n) for n = 131230103197 and 131230103206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131230103227) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 334770476 + ... + 334770867.

It is an arithmetic number, because the mean of its divisors is an integer number (14841499792).

Almost surely, 2^131230103228 is an apocalyptic number.

It is an amenable number.

131230103228 is an abundant number, since it is smaller than the sum of its proper divisors (135916893028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131230103228 is a wasteful number, since it uses less digits than its factorization.

131230103228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669541361 (or 669541352 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 131230103228 its reverse (822301032131), we get a palindrome (953531135359).

The spelling of 131230103228 in words is "one hundred thirty-one billion, two hundred thirty million, one hundred three thousand, two hundred twenty-eight".