1203431 has 4 divisors (see below), whose sum is σ = 1205664. Its totient is φ = 1201200.

The previous prime is 1203421. The next prime is 1203437. The reversal of 1203431 is 1343021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1343021 = 1091 ⋅1231.

It is a cyclic number.

It is not a de Polignac number, because 1203431 - 2¹⁴ = 1187047 is a prime.

It is a super-2 number, since 2×1203431² = 2896492343522, 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 (1203437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251 + ... + 1571.

It is an arithmetic number, because the mean of its divisors is an integer number (301416).

2^1203431 is an apocalyptic number.

1203431 is a deficient number, since it is larger than the sum of its proper divisors (2233).

1203431 is an equidigital number, since it uses as much as digits as its factorization.

1203431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2232.

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

The square root of 1203431 is about 1097.0100273015. The cubic root of 1203431 is about 106.3670378137.

Adding to 1203431 its reverse (1343021), we get a palindrome (2546452).

The spelling of 1203431 in words is "one million, two hundred three thousand, four hundred thirty-one".