1103140431 has 16 divisors (see below), whose sum is σ = 1669056000. Its totient is φ = 719778744.

The previous prime is 1103140427. The next prime is 1103140453. The reversal of 1103140431 is 1340413011.

It is not a de Polignac number, because 1103140431 - 2² = 1103140427 is a prime.

It is a super-2 number, since 2×1103140431² = 2433837621013731522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103140481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 433381 + ... + 435918.

It is an arithmetic number, because the mean of its divisors is an integer number (104316000).

Almost surely, 2^1103140431 is an apocalyptic number.

1103140431 is a deficient number, since it is larger than the sum of its proper divisors (565915569).

1103140431 is an equidigital number, since it uses as much as digits as its factorization.

1103140431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869355 (or 869349 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1103140431 is about 33213.5579394921. The cubic root of 1103140431 is about 1033.2615470653.

Adding to 1103140431 its reverse (1340413011), we get a palindrome (2443553442).

The spelling of 1103140431 in words is "one billion, one hundred three million, one hundred forty thousand, four hundred thirty-one".