1421115111 has 40 divisors (see below), whose sum is σ = 2303121744. Its totient is φ = 868060800.

The previous prime is 1421115103. The next prime is 1421115131. The reversal of 1421115111 is 1115111241.

1421115111 is a `hidden beast` number, since 1 + 42 + 111 + 511 + 1 = 666.

It is not a de Polignac number, because 1421115111 - 2³ = 1421115103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421115131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 139336 + ... + 149186.

Almost surely, 2^1421115111 is an apocalyptic number.

1421115111 is a deficient number, since it is larger than the sum of its proper divisors (882006633).

1421115111 is a wasteful number, since it uses less digits than its factorization.

1421115111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10013 (or 10004 counting only the distinct ones).

The product of its digits is 40, while the sum is 18.

The square root of 1421115111 is about 37697.6804458842. The cubic root of 1421115111 is about 1124.2850070163.

Adding to 1421115111 its reverse (1115111241), we get a palindrome (2536226352).

The spelling of 1421115111 in words is "one billion, four hundred twenty-one million, one hundred fifteen thousand, one hundred eleven".