131223030 has 32 divisors (see below), whose sum is σ = 318000384. Its totient is φ = 34652256.

The previous prime is 131223019. The next prime is 131223047. The reversal of 131223030 is 30322131.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 18144 + ... + 24323.

It is an arithmetic number, because the mean of its divisors is an integer number (9937512).

Almost surely, 2^131223030 is an apocalyptic number.

131223030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131223030 is an abundant number, since it is smaller than the sum of its proper divisors (186777354).

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

131223030 is a wasteful number, since it uses less digits than its factorization.

131223030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42580.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 131223030 is about 11455.2621096158. The cubic root of 131223030 is about 508.1633668677.

Adding to 131223030 its reverse (30322131), we get a palindrome (161545161).

It can be divided in two parts, 1312 and 23030, that added together give a palindrome (24342).

The spelling of 131223030 in words is "one hundred thirty-one million, two hundred twenty-three thousand, thirty".