131031210112203 has 4 divisors (see below), whose sum is σ = 174708280149608. Its totient is φ = 87354140074800.

The previous prime is 131031210112183. The next prime is 131031210112207. The reversal of 131031210112203 is 302211012130131.

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

It is not a de Polignac number, because 131031210112203 - 2⁸ = 131031210111947 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131031210112203.

It is not an unprimeable number, because it can be changed into a prime (131031210112207) 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, 21838535018698 + ... + 21838535018703.

It is an arithmetic number, because the mean of its divisors is an integer number (43677070037402).

Almost surely, 2^{131031210112203} is an apocalyptic number.

131031210112203 is a deficient number, since it is larger than the sum of its proper divisors (43677070037405).

131031210112203 is an equidigital number, since it uses as much as digits as its factorization.

131031210112203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43677070037404.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 131031210112203 its reverse (302211012130131), we get a palindrome (433242222242334).

The spelling of 131031210112203 in words is "one hundred thirty-one trillion, thirty-one billion, two hundred ten million, one hundred twelve thousand, two hundred three".