2111142333444 has 24 divisors (see below), whose sum is σ = 4926025809600. Its totient is φ = 703710249504.

The previous prime is 2111142333439. The next prime is 2111142333449. The reversal of 2111142333444 is 4443332411112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2111142333439) and next prime (2111142333449).

It is a super-2 number, since 2×2111142333444² (a number of 25 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (2111142333449) 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 7 ways as a sum of consecutive naturals, for example, 2564782 + ... + 3286394.

It is an arithmetic number, because the mean of its divisors is an integer number (205251075400).

Almost surely, 2^{2111142333444} is an apocalyptic number.

It is an amenable number.

2111142333444 is an abundant number, since it is smaller than the sum of its proper divisors (2814883476156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2111142333444 is a wasteful number, since it uses less digits than its factorization.

2111142333444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965419 (or 965417 counting only the distinct ones).

The product of its digits is 27648, while the sum is 33.

Adding to 2111142333444 its reverse (4443332411112), we get a palindrome (6554474744556).

The spelling of 2111142333444 in words is "two trillion, one hundred eleven billion, one hundred forty-two million, three hundred thirty-three thousand, four hundred forty-four".