1420244111 has 16 divisors (see below), whose sum is σ = 1687301280. Its totient is φ = 1178411520.

The previous prime is 1420244099. The next prime is 1420244113. The reversal of 1420244111 is 1114420241.

It is not a de Polignac number, because 1420244111 - 2¹⁴ = 1420227727 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 (1420244113) 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, 43070 + ... + 68523.

It is an arithmetic number, because the mean of its divisors is an integer number (105456330).

Almost surely, 2^1420244111 is an apocalyptic number.

1420244111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1420244111 is a deficient number, since it is larger than the sum of its proper divisors (267057169).

1420244111 is a wasteful number, since it uses less digits than its factorization.

1420244111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111706.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 1420244111 is about 37686.1262403023. The cubic root of 1420244111 is about 1124.0552690304.

Adding to 1420244111 its reverse (1114420241), we get a palindrome (2534664352).

The spelling of 1420244111 in words is "one billion, four hundred twenty million, two hundred forty-four thousand, one hundred eleven".