1420101111 has 32 divisors (see below), whose sum is σ = 2245356288. Its totient is φ = 787011840.

The previous prime is 1420101091. The next prime is 1420101127. The reversal of 1420101111 is 1111010241.

It is not a de Polignac number, because 1420101111 - 2⁹ = 1420100599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420101131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30435 + ... + 61371.

It is an arithmetic number, because the mean of its divisors is an integer number (70167384).

Almost surely, 2^1420101111 is an apocalyptic number.

1420101111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1420101111 is a deficient number, since it is larger than the sum of its proper divisors (825255177).

1420101111 is a wasteful number, since it uses less digits than its factorization.

1420101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31071.

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 1420101111 is about 37684.2289426227. The cubic root of 1420101111 is about 1124.0175418778.

Adding to 1420101111 its reverse (1111010241), we get a palindrome (2531111352).

The spelling of 1420101111 in words is "one billion, four hundred twenty million, one hundred one thousand, one hundred eleven".