1142330021111 has 4 divisors (see below), whose sum is σ = 1191996543792. Its totient is φ = 1092663498432.

The previous prime is 1142330021101. The next prime is 1142330021123. The reversal of 1142330021111 is 1111200332411.

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 1142330021111 - 2²⁶ = 1142262912247 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 (1142330021101) 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, 24833261306 + ... + 24833261351.

It is an arithmetic number, because the mean of its divisors is an integer number (297999135948).

Almost surely, 2^{1142330021111} is an apocalyptic number.

1142330021111 is a deficient number, since it is larger than the sum of its proper divisors (49666522681).

1142330021111 is an equidigital number, since it uses as much as digits as its factorization.

1142330021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49666522680.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1142330021111 its reverse (1111200332411), we get a palindrome (2253530353522).

It can be divided in two parts, 11423300 and 21111, that added together give a palindrome (11444411).

The spelling of 1142330021111 in words is "one trillion, one hundred forty-two billion, three hundred thirty million, twenty-one thousand, one hundred eleven".