1103444431 has 4 divisors (see below), whose sum is σ = 1105692264. Its totient is φ = 1101196600.

The previous prime is 1103444423. The next prime is 1103444479. The reversal of 1103444431 is 1344443011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1344443011 = 17 ⋅79084883.

It is a cyclic number.

It is not a de Polignac number, because 1103444431 - 2³ = 1103444423 is a prime.

It is a super-2 number, since 2×1103444431² = 2435179224609827522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1103444396 and 1103444405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103444401) 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, 1123180 + ... + 1124161.

It is an arithmetic number, because the mean of its divisors is an integer number (276423066).

Almost surely, 2^1103444431 is an apocalyptic number.

1103444431 is a deficient number, since it is larger than the sum of its proper divisors (2247833).

1103444431 is an equidigital number, since it uses as much as digits as its factorization.

1103444431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2247832.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 1103444431 is about 33218.1340686078. The cubic root of 1103444431 is about 1033.3564526796.

Adding to 1103444431 its reverse (1344443011), we get a palindrome (2447887442).

The spelling of 1103444431 in words is "one billion, one hundred three million, four hundred forty-four thousand, four hundred thirty-one".