2111542242032 has 80 divisors (see below), whose sum is σ = 4269209967360. Its totient is φ = 1010575104000.

The previous prime is 2111542242031. The next prime is 2111542242037. The reversal of 2111542242032 is 2302422451112.

It is a super-2 number, since 2×2111542242032² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2111542241986 and 2111542242004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111542242031) 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 15 ways as a sum of consecutive naturals, for example, 50726444 + ... + 50768052.

It is an arithmetic number, because the mean of its divisors is an integer number (53365124592).

Almost surely, 2^{2111542242032} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2111542242032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2134604983680).

2111542242032 is an abundant number, since it is smaller than the sum of its proper divisors (2157667725328).

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

2111542242032 is a wasteful number, since it uses less digits than its factorization.

2111542242032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42762 (or 42756 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 2111542242032 its reverse (2302422451112), we get a palindrome (4413964693144).

The spelling of 2111542242032 in words is "two trillion, one hundred eleven billion, five hundred forty-two million, two hundred forty-two thousand, thirty-two".