1420012111 has 16 divisors (see below), whose sum is σ = 1728000000. Its totient is φ = 1164227064.

The previous prime is 1420012103. The next prime is 1420012117. The reversal of 1420012111 is 1112100241.

It is not a de Polignac number, because 1420012111 - 2³ = 1420012103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1420012091 and 1420012100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420012117) 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, 82111 + ... + 97888.

It is an arithmetic number, because the mean of its divisors is an integer number (108000000).

Almost surely, 2^1420012111 is an apocalyptic number.

1420012111 is a deficient number, since it is larger than the sum of its proper divisors (307987889).

1420012111 is an equidigital number, since it uses as much as digits as its factorization.

1420012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180043 (or 180029 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1420012111 is about 37683.0480587757. The cubic root of 1420012111 is about 1123.9940600637.

Adding to 1420012111 its reverse (1112100241), we get a palindrome (2532112352).

The spelling of 1420012111 in words is "one billion, four hundred twenty million, twelve thousand, one hundred eleven".