131011031223 has 12 divisors (see below), whose sum is σ = 191111802648. Its totient is φ = 86475927600.

The previous prime is 131011031209. The next prime is 131011031237. The reversal of 131011031223 is 322130110131.

It is an interprime number because it is at equal distance from previous prime (131011031209) and next prime (131011031237).

It is not a de Polignac number, because 131011031223 - 2⁵ = 131011031191 is a prime.

It is a super-2 number, since 2×131011031223² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131011031196 and 131011031205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131011031023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72062365 + ... + 72064182.

It is an arithmetic number, because the mean of its divisors is an integer number (15925983554).

Almost surely, 2^131011031223 is an apocalyptic number.

131011031223 is a deficient number, since it is larger than the sum of its proper divisors (60100771425).

131011031223 is a wasteful number, since it uses less digits than its factorization.

131011031223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144126654 (or 144126651 counting only the distinct ones).

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

Adding to 131011031223 its reverse (322130110131), we get a palindrome (453141141354).

The spelling of 131011031223 in words is "one hundred thirty-one billion, eleven million, thirty-one thousand, two hundred twenty-three".