131223364 has 12 divisors (see below), whose sum is σ = 229734288. Its totient is φ = 65585000.

The previous prime is 131223361. The next prime is 131223373. The reversal of 131223364 is 463322131.

It is not an unprimeable number, because it can be changed into a prime (131223361) 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, 7959 + ... + 18049.

It is an arithmetic number, because the mean of its divisors is an integer number (19144524).

Almost surely, 2^131223364 is an apocalyptic number.

It is an amenable number.

131223364 is a deficient number, since it is larger than the sum of its proper divisors (98510924).

131223364 is a wasteful number, since it uses less digits than its factorization.

131223364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13346 (or 13344 counting only the distinct ones).

The product of its digits is 2592, while the sum is 25.

The square root of 131223364 is about 11455.2766880595. The cubic root of 131223364 is about 508.1637980075.

Adding to 131223364 its reverse (463322131), we get a palindrome (594545495).

The spelling of 131223364 in words is "one hundred thirty-one million, two hundred twenty-three thousand, three hundred sixty-four".