131131012203 has 24 divisors (see below), whose sum is σ = 190826017200. Its totient is φ = 86768146944.

The previous prime is 131131012193. The next prime is 131131012213. The reversal of 131131012203 is 302210131131.

131131012203 is a `hidden beast` number, since 131 + 1 + 310 + 1 + 220 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (131131012193) and next prime (131131012213).

It is not a de Polignac number, because 131131012203 - 2⁵ = 131131012171 is a prime.

It is a super-2 number, since 2×131131012203² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131131012213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5413503 + ... + 5437671.

It is an arithmetic number, because the mean of its divisors is an integer number (7951084050).

Almost surely, 2^131131012203 is an apocalyptic number.

131131012203 is a deficient number, since it is larger than the sum of its proper divisors (59695004997).

131131012203 is a wasteful number, since it uses less digits than its factorization.

131131012203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28651 (or 28648 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 131131012203 its reverse (302210131131), we get a palindrome (433341143334).

The spelling of 131131012203 in words is "one hundred thirty-one billion, one hundred thirty-one million, twelve thousand, two hundred three".