131023013206 has 8 divisors (see below), whose sum is σ = 197281800144. Its totient is φ = 65262413160.

The previous prime is 131023013201. The next prime is 131023013249. The reversal of 131023013206 is 602310320131.

It is a sphenic number, since it is the product of 3 distinct primes.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124546065 + ... + 124547116.

It is an arithmetic number, because the mean of its divisors is an integer number (24660225018).

Almost surely, 2^131023013206 is an apocalyptic number.

131023013206 is a deficient number, since it is larger than the sum of its proper divisors (66258786938).

131023013206 is a wasteful number, since it uses less digits than its factorization.

131023013206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249093446.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 131023013206 its reverse (602310320131), we get a palindrome (733333333337).

The spelling of 131023013206 in words is "one hundred thirty-one billion, twenty-three million, thirteen thousand, two hundred six".