1111343421 has 16 divisors (see below), whose sum is σ = 1562595840. Its totient is φ = 700634160.

The previous prime is 1111343419. The next prime is 1111343437. The reversal of 1111343421 is 1243431111.

It is not a de Polignac number, because 1111343421 - 2¹ = 1111343419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111343491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14776 + ... + 49406.

It is an arithmetic number, because the mean of its divisors is an integer number (97662240).

Almost surely, 2^1111343421 is an apocalyptic number.

It is an amenable number.

1111343421 is a deficient number, since it is larger than the sum of its proper divisors (451252419).

1111343421 is a wasteful number, since it uses less digits than its factorization.

1111343421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35216.

The product of its digits is 288, while the sum is 21.

The square root of 1111343421 is about 33336.8177995441. The cubic root of 1111343421 is about 1035.8163477050.

Adding to 1111343421 its reverse (1243431111), we get a palindrome (2354774532).

The spelling of 1111343421 in words is "one billion, one hundred eleven million, three hundred forty-three thousand, four hundred twenty-one".