12030431 has 6 divisors (see below), whose sum is σ = 13994640. Its totient is φ = 10311756.

The previous prime is 12030419. The next prime is 12030433. The reversal of 12030431 is 13403021.

It is a de Polignac number, because none of the positive numbers 2^k-12030431 is a prime.

It is a super-2 number, since 2×12030431² = 289462540091522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12030433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122711 + ... + 122808.

It is an arithmetic number, because the mean of its divisors is an integer number (2332440).

Almost surely, 2^12030431 is an apocalyptic number.

12030431 is a deficient number, since it is larger than the sum of its proper divisors (1964209).

12030431 is an equidigital number, since it uses as much as digits as its factorization.

12030431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245533 (or 245526 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 12030431 is about 3468.4911705236. The cubic root of 12030431 is about 229.1362118133.

Adding to 12030431 its reverse (13403021), we get a palindrome (25433452).

The spelling of 12030431 in words is "twelve million, thirty thousand, four hundred thirty-one".