1116311421 has 16 divisors (see below), whose sum is σ = 1499492736. Its totient is φ = 738686976.

The previous prime is 1116311377. The next prime is 1116311431. The reversal of 1116311421 is 1241136111.

1116311421 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1116311421 - 2²⁵ = 1082756989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116311431) 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, 289321 + ... + 293153.

It is an arithmetic number, because the mean of its divisors is an integer number (93718296).

Almost surely, 2^1116311421 is an apocalyptic number.

It is an amenable number.

1116311421 is a deficient number, since it is larger than the sum of its proper divisors (383181315).

1116311421 is a wasteful number, since it uses less digits than its factorization.

1116311421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4532.

The product of its digits is 144, while the sum is 21.

The square root of 1116311421 is about 33411.2469237531. The cubic root of 1116311421 is about 1037.3575114909.

Adding to 1116311421 its reverse (1241136111), we get a palindrome (2357447532).

The spelling of 1116311421 in words is "one billion, one hundred sixteen million, three hundred eleven thousand, four hundred twenty-one".