2011244142 has 16 divisors (see below), whose sum is σ = 4032047952. Its totient is φ = 668821440.

The previous prime is 2011244141. The next prime is 2011244189. The reversal of 2011244142 is 2414421102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011244141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395583 + ... + 400634.

It is an arithmetic number, because the mean of its divisors is an integer number (252002997).

Almost surely, 2^2011244142 is an apocalyptic number.

2011244142 is an abundant number, since it is smaller than the sum of its proper divisors (2020803810).

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

2011244142 is a wasteful number, since it uses less digits than its factorization.

2011244142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796643.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 2011244142 is about 44846.8966819333. The cubic root of 2011244142 is about 1262.2777607310.

Adding to 2011244142 its reverse (2414421102), we get a palindrome (4425665244).

The spelling of 2011244142 in words is "two billion, eleven million, two hundred forty-four thousand, one hundred forty-two".