1103340040421 has 4 divisors (see below), whose sum is σ = 1103767860000. Its totient is φ = 1102912220844.

The previous prime is 1103340040393. The next prime is 1103340040427. The reversal of 1103340040421 is 1240400433011.

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 1103340040421 - 2³⁰ = 1102266298597 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 (1103340040427) 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, 213905921 + ... + 213911078.

It is an arithmetic number, because the mean of its divisors is an integer number (275941965000).

Almost surely, 2^{1103340040421} is an apocalyptic number.

It is an amenable number.

1103340040421 is a deficient number, since it is larger than the sum of its proper divisors (427819579).

1103340040421 is an equidigital number, since it uses as much as digits as its factorization.

1103340040421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427819578.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1103340040421 its reverse (1240400433011), we get a palindrome (2343740473432).

The spelling of 1103340040421 in words is "one trillion, one hundred three billion, three hundred forty million, forty thousand, four hundred twenty-one".