131323103123228 has 6 divisors (see below), whose sum is σ = 229815430465656. Its totient is φ = 65661551561612.

The previous prime is 131323103123227. The next prime is 131323103123243. The reversal of 131323103123228 is 822321301323131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131323103123227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16415387890400 + ... + 16415387890407.

It is an arithmetic number, because the mean of its divisors is an integer number (38302571744276).

Almost surely, 2^{131323103123228} is an apocalyptic number.

It is an amenable number.

131323103123228 is a deficient number, since it is larger than the sum of its proper divisors (98492327342428).

131323103123228 is a wasteful number, since it uses less digits than its factorization.

131323103123228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32830775780811 (or 32830775780809 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

Adding to 131323103123228 its reverse (822321301323131), we get a palindrome (953644404446359).

The spelling of 131323103123228 in words is "one hundred thirty-one trillion, three hundred twenty-three billion, one hundred three million, one hundred twenty-three thousand, two hundred twenty-eight".