1421145020111 has 4 divisors (see below), whose sum is σ = 1421338354224. Its totient is φ = 1420951686000.

The previous prime is 1421145020069. The next prime is 1421145020131. The reversal of 1421145020111 is 1110205411241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1421145020111 - 2¹⁰ = 1421145019087 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 (1421145020131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96656030 + ... + 96670731.

It is an arithmetic number, because the mean of its divisors is an integer number (355334588556).

Almost surely, 2^{1421145020111} is an apocalyptic number.

1421145020111 is a deficient number, since it is larger than the sum of its proper divisors (193334113).

1421145020111 is an equidigital number, since it uses as much as digits as its factorization.

1421145020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193334112.

The product of its (nonzero) digits is 320, while the sum is 23.

The spelling of 1421145020111 in words is "one trillion, four hundred twenty-one billion, one hundred forty-five million, twenty thousand, one hundred eleven".