4012111442 has 4 divisors (see below), whose sum is σ = 6018167166. Its totient is φ = 2006055720.

The previous prime is 4012111423. The next prime is 4012111547. The reversal of 4012111442 is 2441112104.

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

It can be written as a sum of positive squares in only one way, i.e., 3982745881 + 29365561 = 63109^2 + 5419^2 .

It is a super-3 number, since 3×4012111442³ (a number of 30 digits) contains 333 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1003027859 + ... + 1003027862.

Almost surely, 2^4012111442 is an apocalyptic number.

4012111442 is a deficient number, since it is larger than the sum of its proper divisors (2006055724).

4012111442 is a wasteful number, since it uses less digits than its factorization.

4012111442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006055723.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 4012111442 is about 63341.2301901376. The cubic root of 4012111442 is about 1589.0015806419.

Adding to 4012111442 its reverse (2441112104), we get a palindrome (6453223546).

The spelling of 4012111442 in words is "four billion, twelve million, one hundred eleven thousand, four hundred forty-two".