131100123247 has 2 divisors, whose sum is σ = 131100123248. Its totient is φ = 131100123246.

The previous prime is 131100123199. The next prime is 131100123283. The reversal of 131100123247 is 742321001131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131100123247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131100123047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65550061623 + 65550061624.

It is an arithmetic number, because the mean of its divisors is an integer number (65550061624).

Almost surely, 2^131100123247 is an apocalyptic number.

131100123247 is a deficient number, since it is larger than the sum of its proper divisors (1).

131100123247 is an equidigital number, since it uses as much as digits as its factorization.

131100123247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

Adding to 131100123247 its reverse (742321001131), we get a palindrome (873421124378).

The spelling of 131100123247 in words is "one hundred thirty-one billion, one hundred million, one hundred twenty-three thousand, two hundred forty-seven".