131101103123 has 2 divisors, whose sum is σ = 131101103124. Its totient is φ = 131101103122.

The previous prime is 131101103117. The next prime is 131101103171. The reversal of 131101103123 is 321301101131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131101103123 - 2⁶ = 131101103059 is a prime.

It is not a weakly prime, because it can be changed into another prime (131101103113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65550551561 + 65550551562.

It is an arithmetic number, because the mean of its divisors is an integer number (65550551562).

Almost surely, 2^131101103123 is an apocalyptic number.

131101103123 is a deficient number, since it is larger than the sum of its proper divisors (1).

131101103123 is an equidigital number, since it uses as much as digits as its factorization.

131101103123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 131101103123 its reverse (321301101131), we get a palindrome (452402204254).

The spelling of 131101103123 in words is "one hundred thirty-one billion, one hundred one million, one hundred three thousand, one hundred twenty-three".