2142103215 has 32 divisors (see below), whose sum is σ = 3920288256. Its totient is φ = 978422400.

The previous prime is 2142103213. The next prime is 2142103219. The reversal of 2142103215 is 5123012412.

It is not a de Polignac number, because 2142103215 - 2¹ = 2142103213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 2142103191 and 2142103200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142103213) 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 31 ways as a sum of consecutive naturals, for example, 126765 + ... + 142665.

It is an arithmetic number, because the mean of its divisors is an integer number (122509008).

Almost surely, 2^2142103215 is an apocalyptic number.

2142103215 is a deficient number, since it is larger than the sum of its proper divisors (1778185041).

2142103215 is a wasteful number, since it uses less digits than its factorization.

2142103215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17199.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2142103215 is about 46282.8609206475. The cubic root of 2142103215 is about 1289.0807735342.

Adding to 2142103215 its reverse (5123012412), we get a palindrome (7265115627).

The spelling of 2142103215 in words is "two billion, one hundred forty-two million, one hundred three thousand, two hundred fifteen".