131031123263 has 2 divisors, whose sum is σ = 131031123264. Its totient is φ = 131031123262.

The previous prime is 131031123239. The next prime is 131031123343. The reversal of 131031123263 is 362321130131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131031123263 - 2⁶ = 131031123199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131031123203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65515561631 + 65515561632.

It is an arithmetic number, because the mean of its divisors is an integer number (65515561632).

Almost surely, 2^131031123263 is an apocalyptic number.

131031123263 is a deficient number, since it is larger than the sum of its proper divisors (1).

131031123263 is an equidigital number, since it uses as much as digits as its factorization.

131031123263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 131031123263 its reverse (362321130131), we get a palindrome (493352253394).

The spelling of 131031123263 in words is "one hundred thirty-one billion, thirty-one million, one hundred twenty-three thousand, two hundred sixty-three".