131320203203 has 6 divisors (see below), whose sum is σ = 152760236436. Its totient is φ = 112560174132.

The previous prime is 131320203193. The next prime is 131320203227. The reversal of 131320203203 is 302302023131.

It is not a de Polignac number, because 131320203203 - 2¹² = 131320199107 is a prime.

It is a super-2 number, since 2×131320203203² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131320203253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1340002025 + ... + 1340002122.

It is an arithmetic number, because the mean of its divisors is an integer number (25460039406).

Almost surely, 2^131320203203 is an apocalyptic number.

131320203203 is a deficient number, since it is larger than the sum of its proper divisors (21440033233).

131320203203 is an equidigital number, since it uses as much as digits as its factorization.

131320203203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2680004161 (or 2680004154 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 131320203203 its reverse (302302023131), we get a palindrome (433622226334).

The spelling of 131320203203 in words is "one hundred thirty-one billion, three hundred twenty million, two hundred three thousand, two hundred three".