12201431 has 16 divisors (see below), whose sum is σ = 14376960. Its totient is φ = 10237920.

The previous prime is 12201419. The next prime is 12201457. The reversal of 12201431 is 13410221.

It is not a de Polignac number, because 12201431 - 2⁶ = 12201367 is a prime.

It is a super-2 number, since 2×12201431² = 297749836895522, 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 (12201491) 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, 6506 + ... + 8168.

It is an arithmetic number, because the mean of its divisors is an integer number (898560).

Almost surely, 2^12201431 is an apocalyptic number.

12201431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12201431 is a deficient number, since it is larger than the sum of its proper divisors (2175529).

12201431 is a wasteful number, since it uses less digits than its factorization.

12201431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 12201431 is about 3493.0546803622. The cubic root of 12201431 is about 230.2167521901.

Adding to 12201431 its reverse (13410221), we get a palindrome (25611652).

The spelling of 12201431 in words is "twelve million, two hundred one thousand, four hundred thirty-one".