1421425112111 has 4 divisors (see below), whose sum is σ = 1421427512232. Its totient is φ = 1421422711992.

The previous prime is 1421425112099. The next prime is 1421425112117. The reversal of 1421425112111 is 1112115241241.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1421425112111 - 2⁶ = 1421425112047 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 (1421425112117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394805 + ... + 1731681.

It is an arithmetic number, because the mean of its divisors is an integer number (355356878058).

Almost surely, 2^{1421425112111} is an apocalyptic number.

1421425112111 is a deficient number, since it is larger than the sum of its proper divisors (2400121).

1421425112111 is a wasteful number, since it uses less digits than its factorization.

1421425112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2400120.

The product of its digits is 640, while the sum is 26.

The spelling of 1421425112111 in words is "one trillion, four hundred twenty-one billion, four hundred twenty-five million, one hundred twelve thousand, one hundred eleven".