1142340020111 has 4 divisors (see below), whose sum is σ = 1142342623752. Its totient is φ = 1142337416472.

The previous prime is 1142340020009. The next prime is 1142340020119. The reversal of 1142340020111 is 1110200432411.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1142340020111 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 (1142340020119) 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, 463940 + ... + 1581113.

It is an arithmetic number, because the mean of its divisors is an integer number (285585655938).

Almost surely, 2^{1142340020111} is an apocalyptic number.

1142340020111 is a deficient number, since it is larger than the sum of its proper divisors (2603641).

1142340020111 is an equidigital number, since it uses as much as digits as its factorization.

1142340020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2603640.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1142340020111 its reverse (1110200432411), we get a palindrome (2252540452522).

The spelling of 1142340020111 in words is "one trillion, one hundred forty-two billion, three hundred forty million, twenty thousand, one hundred eleven".