1113535421 has 4 divisors (see below), whose sum is σ = 1137227712. Its totient is φ = 1089843132.

The previous prime is 1113535393. The next prime is 1113535429. The reversal of 1113535421 is 1245353111.

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 1113535421 - 2¹⁴ = 1113519037 is a prime.

It is a super-2 number, since 2×1113535421² = 2479922267643294482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113535429) 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, 11846075 + ... + 11846168.

It is an arithmetic number, because the mean of its divisors is an integer number (284306928).

Almost surely, 2^1113535421 is an apocalyptic number.

It is an amenable number.

1113535421 is a deficient number, since it is larger than the sum of its proper divisors (23692291).

1113535421 is an equidigital number, since it uses as much as digits as its factorization.

1113535421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23692290.

The product of its digits is 1800, while the sum is 26.

The square root of 1113535421 is about 33369.6781674621. The cubic root of 1113535421 is about 1036.4969109014.

Adding to 1113535421 its reverse (1245353111), we get a palindrome (2358888532).

The spelling of 1113535421 in words is "one billion, one hundred thirteen million, five hundred thirty-five thousand, four hundred twenty-one".