131800001318 has 16 divisors (see below), whose sum is σ = 209647096560. Its totient is φ = 61929401856.

The previous prime is 131800001317. The next prime is 131800001321. The reversal of 131800001318 is 813100008131.

131800001318 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131800001317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2918771 + ... + 2963582.

It is an arithmetic number, because the mean of its divisors is an integer number (13102943535).

Almost surely, 2^131800001318 is an apocalyptic number.

131800001318 is a deficient number, since it is larger than the sum of its proper divisors (77847095242).

131800001318 is a wasteful number, since it uses less digits than its factorization.

131800001318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5883031.

The product of its (nonzero) digits is 576, while the sum is 26.

Adding to 131800001318 its reverse (813100008131), we get a palindrome (944900009449).

It can be divided in two parts, 13180000 and 1318, that multiplied together give a square (17371240000 = 131800²).

The spelling of 131800001318 in words is "one hundred thirty-one billion, eight hundred million, one thousand, three hundred eighteen".