131100223 has 2 divisors, whose sum is σ = 131100224. Its totient is φ = 131100222.

The previous prime is 131100199. The next prime is 131100251. The reversal of 131100223 is 322001131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131100223 - 2⁵ = 131100191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131100283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65550111 + 65550112.

It is an arithmetic number, because the mean of its divisors is an integer number (65550112).

Almost surely, 2^131100223 is an apocalyptic number.

131100223 is a deficient number, since it is larger than the sum of its proper divisors (1).

131100223 is an equidigital number, since it uses as much as digits as its factorization.

131100223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 131100223 is about 11449.9005672538. The cubic root of 131100223 is about 508.0047933394.

Adding to 131100223 its reverse (322001131), we get a palindrome (453101354).

It can be divided in two parts, 1311002 and 23, that added together give a square (1311025 = 1145²).

The spelling of 131100223 in words is "one hundred thirty-one million, one hundred thousand, two hundred twenty-three".