131023013207 has 4 divisors (see below), whose sum is σ = 138730249296. Its totient is φ = 123315777120.

The previous prime is 131023013201. The next prime is 131023013249. The reversal of 131023013207 is 702310320131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131023013207 - 2¹⁸ = 131022751063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131023013201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3853618019 + ... + 3853618052.

It is an arithmetic number, because the mean of its divisors is an integer number (34682562324).

Almost surely, 2^131023013207 is an apocalyptic number.

131023013207 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

131023013207 is a deficient number, since it is larger than the sum of its proper divisors (7707236089).

131023013207 is an equidigital number, since it uses as much as digits as its factorization.

131023013207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7707236088.

The product of its (nonzero) digits is 756, while the sum is 23.

Adding to 131023013207 its reverse (702310320131), we get a palindrome (833333333338).

The spelling of 131023013207 in words is "one hundred thirty-one billion, twenty-three million, thirteen thousand, two hundred seven".