1420323111 has 12 divisors (see below), whose sum is σ = 2122322280. Its totient is φ = 914230800.

The previous prime is 1420323049. The next prime is 1420323119. The reversal of 1420323111 is 1113230241.

1420323111 is a `hidden beast` number, since 1 + 420 + 3 + 231 + 11 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-1420323111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420323119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2720665 + ... + 2721186.

It is an arithmetic number, because the mean of its divisors is an integer number (176860190).

Almost surely, 2^1420323111 is an apocalyptic number.

1420323111 is a deficient number, since it is larger than the sum of its proper divisors (701999169).

1420323111 is a wasteful number, since it uses less digits than its factorization.

1420323111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5441886 (or 5441883 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1420323111 is about 37687.1743568021. The cubic root of 1420323111 is about 1124.0761102175.

Adding to 1420323111 its reverse (1113230241), we get a palindrome (2533553352).

The spelling of 1420323111 in words is "one billion, four hundred twenty million, three hundred twenty-three thousand, one hundred eleven".