12131430 has 16 divisors (see below), whose sum is σ = 29115504. Its totient is φ = 3235040.

The previous prime is 12131429. The next prime is 12131437. The reversal of 12131430 is 3413121.

12131430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202161 + ... + 202220.

It is an arithmetic number, because the mean of its divisors is an integer number (1819719).

Almost surely, 2^12131430 is an apocalyptic number.

12131430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12131430 is an abundant number, since it is smaller than the sum of its proper divisors (16984074).

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

12131430 is a wasteful number, since it uses less digits than its factorization.

12131430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404391.

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

The square root of 12131430 is about 3483.0202411126. The cubic root of 12131430 is about 229.7756476424.

Adding to 12131430 its reverse (3413121), we get a palindrome (15544551).

It can be divided in two parts, 12131 and 430, that added together give a triangular number (12561 = T₁₅₈).

The spelling of 12131430 in words is "twelve million, one hundred thirty-one thousand, four hundred thirty".