1113534421 has 4 divisors (see below), whose sum is σ = 1121545600. Its totient is φ = 1105523244.

The previous prime is 1113534403. The next prime is 1113534427. The reversal of 1113534421 is 1244353111.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1244353111 = 19 ⋅65492269.

It is a cyclic number.

It is not a de Polignac number, because 1113534421 - 2¹⁷ = 1113403349 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 (1113534427) 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, 4005381 + ... + 4005658.

It is an arithmetic number, because the mean of its divisors is an integer number (280386400).

Almost surely, 2^1113534421 is an apocalyptic number.

It is an amenable number.

1113534421 is a deficient number, since it is larger than the sum of its proper divisors (8011179).

1113534421 is an equidigital number, since it uses as much as digits as its factorization.

1113534421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8011178.

The product of its digits is 1440, while the sum is 25.

The square root of 1113534421 is about 33369.6631837961. The cubic root of 1113534421 is about 1036.4966006292.

Adding to 1113534421 its reverse (1244353111), we get a palindrome (2357887532).

The spelling of 1113534421 in words is "one billion, one hundred thirteen million, five hundred thirty-four thousand, four hundred twenty-one".