1105431413 has 4 divisors (see below), whose sum is σ = 1107949920. Its totient is φ = 1102912908.

The previous prime is 1105431407. The next prime is 1105431469. The reversal of 1105431413 is 3141345011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1105431413 - 2¹² = 1105427317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105431403) 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, 1258595 + ... + 1259472.

It is an arithmetic number, because the mean of its divisors is an integer number (276987480).

Almost surely, 2^1105431413 is an apocalyptic number.

It is an amenable number.

1105431413 is a deficient number, since it is larger than the sum of its proper divisors (2518507).

1105431413 is an equidigital number, since it uses as much as digits as its factorization.

1105431413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2518506.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1105431413 is about 33248.0287084813. The cubic root of 1105431413 is about 1033.9763387393.

Adding to 1105431413 its reverse (3141345011), we get a palindrome (4246776424).

The spelling of 1105431413 in words is "one billion, one hundred five million, four hundred thirty-one thousand, four hundred thirteen".