2142103212 has 96 divisors (see below), whose sum is σ = 5772748800. Its totient is φ = 686097216.

The previous prime is 2142103199. The next prime is 2142103213. The reversal of 2142103212 is 2123012412.

It is a happy number.

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 (2142103213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 696903 + ... + 699969.

It is an arithmetic number, because the mean of its divisors is an integer number (60132800).

Almost surely, 2^2142103212 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 2142103212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2886374400).

2142103212 is an abundant number, since it is smaller than the sum of its proper divisors (3630645588).

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

2142103212 is a wasteful number, since it uses less digits than its factorization.

2142103212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3332 (or 3324 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2142103212 is about 46282.8608882381. The cubic root of 2142103212 is about 1289.0807729324.

Adding to 2142103212 its reverse (2123012412), we get a palindrome (4265115624).

The spelling of 2142103212 in words is "two billion, one hundred forty-two million, one hundred three thousand, two hundred twelve".