1103431 has 8 divisors (see below), whose sum is σ = 1287200. Its totient is φ = 945504.

The previous prime is 1103371. The next prime is 1103437. The reversal of 1103431 is 1343011.

It is not a de Polignac number, because 1103431 - 2¹³ = 1095239 is a prime.

It is a super-2 number, since 2×1103431² = 2435119943522, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103437) 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, 1266 + ... + 1951.

It is an arithmetic number, because the mean of its divisors is an integer number (160900).

2^1103431 is an apocalyptic number.

1103431 is a deficient number, since it is larger than the sum of its proper divisors (183769).

1103431 is an frugal number, since it uses more digits than its factorization.

1103431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3238 (or 3224 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1103431 is about 1050.4432397802. The cubic root of 1103431 is about 103.3352260030.

Adding to 1103431 its reverse (1343011), we get a palindrome (2446442).

The spelling of 1103431 in words is "one million, one hundred three thousand, four hundred thirty-one".