131012223 has 16 divisors (see below), whose sum is σ = 176853600. Its totient is φ = 86261760.

The previous prime is 131012213. The next prime is 131012249. The reversal of 131012223 is 322210131.

It is not a de Polignac number, because 131012223 - 2⁴ = 131012207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131012213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169983 + ... + 170751.

It is an arithmetic number, because the mean of its divisors is an integer number (11053350).

Almost surely, 2^131012223 is an apocalyptic number.

131012223 is a deficient number, since it is larger than the sum of its proper divisors (45841377).

131012223 is a wasteful number, since it uses less digits than its factorization.

131012223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 131012223 is about 11446.0570940390. The cubic root of 131012223 is about 507.8911031487.

Adding to 131012223 its reverse (322210131), we get a palindrome (453222354).

The spelling of 131012223 in words is "one hundred thirty-one million, twelve thousand, two hundred twenty-three".