2111133042 has 24 divisors (see below), whose sum is σ = 4588747644. Its totient is φ = 701460864.

The previous prime is 2111133029. The next prime is 2111133043. The reversal of 2111133042 is 2403311112.

It can be written as a sum of positive squares in 2 ways, for example, as 2110391721 + 741321 = 45939^2 + 861^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2111133043) 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 11 ways as a sum of consecutive naturals, for example, 181723 + ... + 192990.

Almost surely, 2^2111133042 is an apocalyptic number.

2111133042 is an abundant number, since it is smaller than the sum of its proper divisors (2477614602).

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

2111133042 is a wasteful number, since it uses less digits than its factorization.

2111133042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375034 (or 375031 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 2111133042 is about 45947.0678280998. The cubic root of 2111133042 is about 1282.8381525708.

Adding to 2111133042 its reverse (2403311112), we get a palindrome (4514444154).

The spelling of 2111133042 in words is "two billion, one hundred eleven million, one hundred thirty-three thousand, forty-two".