1103513421 has 8 divisors (see below), whose sum is σ = 1471669344. Its totient is φ = 735516560.

The previous prime is 1103513399. The next prime is 1103513441. The reversal of 1103513421 is 1243153011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1103513421 - 2⁶ = 1103513357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103513441) 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, 22506 + ... + 52091.

It is an arithmetic number, because the mean of its divisors is an integer number (183958668).

Almost surely, 2^1103513421 is an apocalyptic number.

It is an amenable number.

1103513421 is a deficient number, since it is larger than the sum of its proper divisors (368155923).

1103513421 is an equidigital number, since it uses as much as digits as its factorization.

1103513421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79531.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1103513421 is about 33219.1724911985. The cubic root of 1103513421 is about 1033.3779882078.

Adding to 1103513421 its reverse (1243153011), we get a palindrome (2346666432).

The spelling of 1103513421 in words is "one billion, one hundred three million, five hundred thirteen thousand, four hundred twenty-one".