131223102 has 32 divisors (see below), whose sum is σ = 278383392. Its totient is φ = 41094144.

The previous prime is 131223097. The next prime is 131223109. The reversal of 131223102 is 201322131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131223109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94888 + ... + 96260.

It is an arithmetic number, because the mean of its divisors is an integer number (8699481).

Almost surely, 2^131223102 is an apocalyptic number.

131223102 is an abundant number, since it is smaller than the sum of its proper divisors (147160290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131223102 is a wasteful number, since it uses less digits than its factorization.

131223102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332.

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

The square root of 131223102 is about 11455.2652522759. The cubic root of 131223102 is about 508.1634598080.

Adding to 131223102 its reverse (201322131), we get a palindrome (332545233).

The spelling of 131223102 in words is "one hundred thirty-one million, two hundred twenty-three thousand, one hundred two".