12203431 has 2 divisors, whose sum is σ = 12203432. Its totient is φ = 12203430.

The previous prime is 12203419. The next prime is 12203437. The reversal of 12203431 is 13430221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12203431 - 2⁹ = 12202919 is a prime.

It is a super-2 number, since 2×12203431² = 297847456343522, which contains 22 as substring.

It is a zygodrome in base 5.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12203437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6101715 + 6101716.

It is an arithmetic number, because the mean of its divisors is an integer number (6101716).

Almost surely, 2^12203431 is an apocalyptic number.

12203431 is a deficient number, since it is larger than the sum of its proper divisors (1).

12203431 is an equidigital number, since it uses as much as digits as its factorization.

12203431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 12203431 is about 3493.3409510095. The cubic root of 12203431 is about 230.2293301779.

Adding to 12203431 its reverse (13430221), we get a palindrome (25633652).

The spelling of 12203431 in words is "twelve million, two hundred three thousand, four hundred thirty-one".